{Qin Lang}, the make-up artist at the funeral home, always abides by the "three no's principles" left by his master: not to look at the corpse, not to tidy up the corpse's belongings, and not to talk to the corpse. Until the appearance of a young female corpse broke all the peace - while putting on makeup, the female corpse suddenly opened her eyes and murmured "It's not an accident." Qin Lang violated the rules and asked, but the female corpse returned to deathly silence. Since then, strange things happened frequently in the funeral home: makeup tools disappeared for no reason, and the remains of a female body appeared inexplicably in his locker. Qin Lang noticed something strange and found that the "accidental car accident" deemed by the police was full of doubts. The strange fibers between the fingernails of the female corpse pointed to a deliberate murder.