Season 2 Plot
Forensic pathologist Dai Yu and detective Zheng Ming are drawn into a string of unsettling murders linked to an unresolved kidnapping case from years ago. As buried secrets resurface and the cases converge, they race against time to uncover the truth and bring the real culprit to justice.
Original Sin Season 2 aired on January 27th, 2026.
Season 2 Episodes
1. Episode 1
After Pang Beiyuan’s case, Dai Yu and Zheng Ming face psychological evaluations—just as a staged murder tied to a man with multiple identities pulls them into a new mystery.
2. Episode 2
A second body links Liu Ping to his past, forcing Dai Yu and Zheng Ming to reopen a trail that leads back to 2007.
3. Episode 3
As clues resurface from an unsolved kidnapping, Dai Yu begins suspecting Yang Guang and Ma Xiaoquan’s past may be darker than anyone knew.
4. Episode 4
A father’s confession and forensic inconsistencies push Zheng Ming and Dai Yu to question whether two recent deaths were really accidents.
5. Episode 5
When new evidence surfaces, suspicion shifts toward Feng Tingye and Li Xueqiong—just as hidden motives begin to unravel.
6. Episode 6
Li Xueqiong’s apparent suicide raises red flags, and Dai Yu uncovers signs of a carefully staged crime scene.
7. Episode 7
As tensions explode between Feng Tingye and Cheng Kangren, Zheng Ming races to stop another killing.
8. Episode 8
Shocking revelations tie a 2007 accident to Xie Tong’s family—sending her into emotional collapse.
9. Episode 9
A cryptic pattern hidden in knitting and playing cards leads Dai Yu to a devastating breakthrough.
10. Episode 10
Xie Tong confesses to years of calculated revenge, forcing Zheng Ming into a heartbreaking final confrontation.
11. Episode 11
A frozen body discovered in a cold storage facility draws Dai Yu back into work as Zheng Ming uncovers a long-missing man’s secrets.
12. Episode 12
As Liu Rong faces the truth about her husband’s death, forensic evidence suggests the crime scene was carefully relocated.
13. Episode 13
After Cheng Jiancai’s sudden death, three suspects turn on each other—each with something to hide.
14. Episode 14
Dai Yu’s autopsy reveals murder staged as an accident, exposing a deeper conspiracy between Liu Rong and her allies.
15. Episode 15
The truth behind the apartment fire and two connected murders emerges, revealing a revenge plot years in the making.
16. Episode 16
A deadly synthetic toxin resurfaces, pulling Dai Yu, Zheng Ming, and Xu Haishan into a shadow war with a dangerous organization.
17. Episode 17
What appears to be an accidental electrocution unravels into murder, as buried family secrets surface in Huangjiazhuang.
18. Episode 18
As a second body is recovered from the lake, Zheng Ming realizes Wang Yu may not have acted alone.
19. Episode 19
Wang Yu confesses to killing her abusive husband—but forensic evidence suggests another hand was involved.
20. Episode 20
A chilling link between Huang Hankun and a 2007 assault case leads Dai Yu to suspect a serial offender.
21. Episode 21
A faded exam number points Zheng Ming toward Wen Xian—while Dai Yu senses he is being watched.
22. Episode 22
DNA evidence and a raincoat tie Wen Xian to multiple crimes, while Xu Haishan’s past resurfaces.
23. Episode 23
Wen Xian confesses his motives to Xu Haishan, but escapes after a violent confrontation.
24. Episode 24
After Wen Xian’s arrest, a shocking revelation about Xu Haishan’s hidden actions tests the trust between him, Dai Yu, and Zheng Ming.
