Seven years ago, trainee police officer Liao Yaoxuan was fired for being involved in the "Rainy Night Butcher" case, and his partner Yang Nanxi was seriously injured and lost her memory. Seven years later, a corpse imitating the crime's modus operandi appears. The amnesiac policewoman and the fallen former police detective are forced to join forces to settle old cases and each other amidst the ruins of lies and betrayal.
