Fang Yi-jen inspects a fingerprint from the scene of a grisly crime and strikes a deal with investigative journalist Hsu Hai-yin.
On a victim's charred body, Fang Yi-jen finds evidence that incriminates a construction company. The truth about Yu Cheng-hao's death comes to light.
As police search for Chang Tsung-chien, Fang recalls an incident in Chiang Hsiao-meng's past, and uncovers a shocking truth about the recent deaths.
Amid a probe into the death of a man thought to be an ex-con, Fang and Hsu Hai-yin follow the next link in the murder-suicide chain.
As Liu Kuang-yung's fate hangs by a thread, Fang visits a tattoo shop linked to Hsiao-meng and encounters Hsu.
Detective Chao suspects efforts to destroy evidence and exposes Fang's personal connection to the cases. Hsiao-meng leaves a clue for Fang.
Fang and Hsu learn about Chiang Jo-ying's tragic end. As the investigation faces an impasse, Li Ya-chun turns herself in to the police.
Hsiao-meng and Li Ya-chun make searing confessions about their personal motivations and involvement in the suicide cult. Hsu finds new purpose.