Light the Dark
Light the Dark is a 12-episode Chinese mystery thriller from iQIYI. It aired from October 15, 2026 to October 26, 2026, and all episodes are out. In the US it streams officially on iQIYI (VIP, episodes 1-2 free), checked November 1, 2026.
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Is it worth watching?
Final verdict coming soon. It goes up once our editor has seen the ending. How we rate
Viewers who like tight, 12-episode crime dramas about family secrets and factory corruption, told across two timelines
What viewers score it
The story, without spoilers
What to Expect
We haven't watched this one. This section is based on the episode synopses and character profiles on Baidu Baike, the iQ.com synopsis and Chinese coverage, and we'll replace it with a verdict once we have one.
The story moves between two timelines, 1997 and 2000, and keeps cutting back and forth. The 1997 strand is the investigation: Chen Ying combs the supply section's books for proof of graft while Chen Shan follows stolen materials out of the plant. The 2000 strand opens with Chen Shan back from prison, angry and secretive, and a family split by his suspicion of Qi Mo. At 12 episodes it moves quickly, and nearly every episode ends on a new piece of evidence or a new loss.
It is as much a family drama as a thriller. The siblings aren't related by blood, a secret about Chen Ying's birth parents comes out early, and the relationship between sister and brother is the center of the show. Chinese coverage has singled out the drab, lived-in setting of a 1990s state factory town, filmed in the old Changfeng Chemical plant in Chongqing. Reception was mixed: Douban users gave it a 6.4, and on Yunhe's chart it peaked at a 3.9% share of the market.
The tone is dark and quiet rather than action-packed. Content notes: an industrial explosion, the deaths of parents, suicide, sexual harassment at work, a drunk-driving crash, a miscarriage and prison.
The Story
In the summer of 1997, in Wugang (雾港), a petrochemical town in southwest China, Chen Fu, head of the plant's engineering crew, finds that the alloy-steel flanges on a gas pipeline have been swapped for cheap carbon steel. The next morning the "713" pipeline project explodes with him on site, and he doesn't survive. The plant blames his crew, his wife Zhang Wenying, the pipeline's designer, takes the blame to protect her children, and she is soon dead too. Their adopted daughter Chen Ying, an accountant, and their son Chen Shan, a new graduate, set out to clear their parents' names with the help of an engineer, Qi Mo, and bring down the plant director. Three years later Chen Shan comes out of prison to find Qi Mo running the restructured company and married to his sister, and he starts to suspect him. Light the Dark (把黑夜点燃, Ba Hei Ye Dian Ran) is a 12-episode iQIYI crime drama from 2026 starring Jiang Xin and Chen Zheyuan, directed by Liu Xin (刘新) from an original screenplay. It aired in October 2026, and in the US it streams on iQ.com.
Release Notes
Light the Dark premiered on iQIYI on October 15, 2026, at 18:00 Beijing time, and also aired on 银河奇异果TV (Galaxy Kiwi TV). Members got three episodes on day one, two the next day, and then one a day from October 17 to 20. After a break from October 21 to 23, the last three came out one a day, and the members' finale was on October 26. Non-members got episodes on a slower schedule, and we haven't confirmed when it finished for them. Baidu Baike gives its peak iQIYI heat score as 6,534, and Maoyan counted 61.6 million effective views by October 26.
It was filmed in Changshou District, Chongqing, including the old Changfeng Chemical plant and the Sandaoguai (三倒拐) historic street, from May 8 to June 17, 2025, and licensed for broadcast on June 4, 2026. It was written by Dai Zhengyang (戴正阳), Liu Jing (刘晶), Zhang Xueli (张雪丽) and Zhao Shihui (赵诗卉), and produced by iQIYI with Fosun Pictures (复星影业). Chen Sitong (陈思同) composed the score, and the soundtrack album came out on October 16, 2026.
Internationally, it went up on iQ.com the same evening as in China. Checked from the US on November 1, 2026, all 12 episodes were listed with English subtitles, episodes 1 and 2 free and the rest for VIP members. iQ.com also has six short behind-the-scenes clips. We didn't find it on Viki. It is a single, complete season.
Does Light the Dark have a happy ending?
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We have not finished this one ourselves; this is based on outside sources.
In Brief
Ending spoilerShow the ending in brief
Light the Dark has a bittersweet ending, according to the episode synopses on Baidu Baike and Chinese recaps. The siblings learn the truth about both of their parents' deaths and the people behind them are exposed, but their parents are gone, and the sources don't settle where Chen Ying's marriage stands.
Full Ending Explained
Full spoilersShow the full ending
This account comes from Baidu Baike's synopses of episodes 11 and 12, its character profiles, and recaps from Sohu and a Taiwanese blog, not from watching.
The staged split. In episode 11 it turns out the siblings' bitter falling-out after Chen Shan's release was partly an act. Chen Ying had spent three years quietly going through the head company's old accounts and project files, and after Chen Shan came home the two worked the case from inside and outside. Following hush money that Liu Hong had been collecting every month, they reached Geng Jian.
Zhang Wenying's death. Geng Jian, the siblings' godfather, confesses. After the explosion Wan Yang sent him to persuade Zhang Wenying to take the blame. She mocked him as a man who would always be second in command, and he strangled her with a rope, then forged a suicide note and staged the scene. Wan Yang saw it, and used it to make Geng Jian the front for his graft for years. Baike says Geng Jian later takes his own life.
Qi Mo. In episode 12 Qi Mo finally tells the siblings what he has hidden. Wan Yang had stolen his research paper and kept him from going home to see his dying father, so Qi Mo reported Wan Yang for corruption under his own name and helped the investigators find the money. Wan Yang killed himself by jumping from a building, and Qi Mo's reform plan won him the top job. On the day of the explosion, the leaking section was the one Qi Mo had been supervising. Baike's profile says his confession clears him of being the main culprit.
Sun Jie. The siblings trace a gold lock engraved with the character ying (英), the old site records and Sun Jie's years in the supply section, and the evidence points to him. Chen Shan realizes that Sun Jie, who had befriended him in prison, was angling for a shorter sentence, and that his help after their release was a way to watch the investigation. Baike says Chen Fu was "most likely" silenced by Sun Jie for reporting the bad parts, and that Wan Yang was the man pushed out in front. Sohu and the Taiwanese recap say Sun Jie is arrested, and the recap says he tried to blow the valve again before he was caught.
What stays unclear. Sohu says Chen Ying doesn't divorce Qi Mo, and the Taiwanese recap says he is sent to a cadre training course, but we haven't confirmed either. Baike's last synopsis stops at Qi Mo's confession.
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Cast and characters
Also starring
- Chen Ying (Jiang Xin): an accountant at the plant, adopted by the Chens after her birth parents died. She is the careful one, who looks for proof in the books.
- Chen Shan (Chen Zheyuan): her younger brother, a quick, hot-headed petroleum graduate who wanted to leave town before his father died.
- Qi Mo (Ren Zhong): an engineer in the design office and Zhang Wenying's apprentice, who helps the siblings in 1997 and by 2000 runs the company and is married to Chen Ying.
- Geng Jian (Zhang Guoqiang): the deputy plant director, the siblings' godfather and their mother's former love.
- Wan Yang (Wu Gang): the plant director, whom the siblings blame for the explosion.
- Sun Jie (Chen Chuhan): head of the supply section and Wan Yang's trusted man.
- Zhang Wenying (Jiang Hongbo): the siblings' mother, a pipeline designer.
- Chen Fu (Li Bo): the siblings' father, head of the engineering crew, killed in the explosion.
- Ma Yiming (Guo Cheng): Chen Shan's friend, who takes him in when he has nowhere to go.
- Liu Jun (Shi Chao) and Liu Hong (Liu Yi): Wan Yang's brother-in-law and wife.
- Team Leader Pan (Wang Tonghui): head of the team investigating the explosion.
Chen Ying's Birth Parents
The synopsis says Chen Ying was adopted. Early on, Wan Yang tells Chen Shan a secret about her birth parents that tears the family apart.
Minor spoilerReveal the secret about Chen Ying's birth parents
According to Baidu Baike, Chen Ying's birth parents, Peng Da (彭达) and Feng Lan (冯兰), died in an accident caused by a design error of Zhang Wenying's, years before the story begins. Wan Yang tells Chen Shan in episode 3, Zhang Wenying admits it, and in episode 6 Chen Shan says it out loud in front of his sister, who throws him out.
Words and customs you'll hear
The title
Ba hei ye dian ran (把黑夜点燃) means "set the night alight," and the English title keeps the idea. The drama's working title was Chen Jia Wang Shi (陈家往事), "the Chen family's past." The end theme, "Ignite" (点燃), is credited to Jiang Xin on Baidu Baike.
Factory towns and restructuring
In the 1990s many Chinese towns were built around one state-owned plant that supplied jobs, housing, schools and social life. Your parents' colleagues were your neighbors, and a scandal at work was a scandal at home. Late in the decade many of these plants were restructured (改制) into companies, which is the change Chen Shan comes home to in 2000. Housing was often assigned by the employer, which is why the plant can tell the siblings to leave their flat after their parents die: the plant says it was only on loan, not assigned to the family.
Godparents
Geng Jian is the siblings' gandie (干爹), a godfather by family friendship rather than religion. The tie is informal but real, and a gandie is expected to look out for the children, which is why his place in the story matters.
Light the Dark FAQ
What is Light the Dark about?
Light the Dark is a 2026 Chinese crime drama set in a petrochemical town in 1997 and 2000. After a pipeline explosion kills their father and their mother dies soon after, an adopted sister and her brother, Chen Ying and Chen Shan, set out to find who was really responsible.
Is Light the Dark a Chinese drama?
Yes. Light the Dark (把黑夜点燃, Ba Hei Ye Dian Ran) is a Chinese series made for iQIYI, in Mandarin, from an original screenplay rather than a novel. It stars Jiang Xin and Chen Zheyuan and was directed by Liu Xin (刘新). If you searched for it because of the English title, this is the 12-episode family crime drama from October 2026.
How many episodes does Light the Dark have?
Light the Dark has 12 episodes of about 45 minutes, and all of them have aired. On iQ.com the episodes run from about 43 to 48 minutes, so the whole drama takes around nine hours. It is a single season, and the story ends with the last episode.
When did Light the Dark come out?
It premiered on iQIYI and iQ.com on October 15, 2026, at 18:00 Beijing time, with three episodes for members on the first day. iQIYI members saw the finale on October 26, 2026, after a short break from October 21 to 23. Non-members got episodes on a slower schedule.
Where can I watch Light the Dark?
In China it streams on iQIYI. From the US on November 1, 2026, iQ.com had all 12 episodes with English subtitles, episodes 1 and 2 free and the rest for VIP members. We didn't find it on Viki, and we haven't checked iQ.com from the UK, Canada or Australia.
Who is in the cast of Light the Dark?
Jiang Xin plays Chen Ying and Chen Zheyuan plays her brother, Chen Shan. Ren Zhong plays the engineer Qi Mo, Zhang Guoqiang plays their godfather, Geng Jian, Chen Chuhan plays Sun Jie and Wu Gang plays the plant director, Wan Yang. Jiang Hongbo plays the siblings' mother.
How does Light the Dark end?
SpoilerShow the answer
Minor spoilerReveal how it ends
Bittersweet, according to the synopses and recaps. The siblings' falling-out was partly staged, they learn who killed their mother and who was behind the explosion, and the people responsible are exposed. Their parents can't be brought back, and the sources don't settle Chen Ying's marriage to Qi Mo.
Who caused the explosion in Light the Dark?
SpoilerShow the answer
Ending spoilerReveal who was behind the explosion
According to Baidu Baike, the evidence points to Sun Jie, who most likely silenced Chen Fu for reporting the bad parts, with Wan Yang pushed out in front. Qi Mo is cleared, though the leaking section was his to supervise. Recaps say Sun Jie is arrested. Geng Jian killed Zhang Wenying separately.
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