The reshaping of human nature by traumatic memory/The game between technology and human nature
| Jiang Li (female, 28) | Chief Medical Examiner of the Municipal Bureau | When he witnessed the kidnapping of his twin sisters seven years ago, he failed to stop it due to a panic attack |
| Lu Chen (male, 32) | Criminal police captain | Undercover operation led to the death of the informant and PTSD |
| Lin Shen (male, 35) | CEO of a biotechnology company | Illegal experiment on extracting consciousness from frozen human brains |
| Bai Ye (male,?) | Serial killer | Obtain multiple identities by transplanting facial skin of deceased persons |
Concept: suspense reasoning