A criminal psychologist and a forensic expert works together to track down a serial killer who targets people who have been acquitted of notable crimes and uses their guilt as his modus operandi.
| Actor | Role |
|---|---|
 Deng ChaoFang Mu | Fang Mu |
 Ethan JuanJiang Ya | Jiang Ya |
 Liu ShishiMi Nan | Mi Nan |
 Wen QiLiao Yafan | Liao Yafan |
 Yu AileiLiang Xuewu | Liang Xuewu |
 Karena Lam Kar-YanWei Wei | Wei Wei |
 Guo JingfeiRen Chuan | Ren Chuan |
 He HongshanQi Yuan | Qi Yuan |
 Shi ZhaoqiCaptain Liu | Captain Liu |
 Sun LiangJiang Weili | Jiang Weili |
 Victor LiuJiang Ya (teen) | Jiang Ya (teen) |
 Liu TianzuoWu Zhaoguang | Wu Zhaoguang |
 Dai XuLi Yi | Li Yi |