Shen Jin is the coldest forensic detective in criminal investigation, able to read the silence of corpses with a single glance. Qi Xiao is the most ruthless former undercover agent in the black market, able to strip away the shell of truth with a single blade. When evidence from a string of murders points to a mole inside the police station, Shen Jin drops to one knee in the evidence room, holding a bloodstained button between his fingers. It is a fragment from the coat Qi Xiao wore when he disappeared seven years ago. The whole city is in an uproar. The police issue a warrant, the underworld puts out a bounty, yet they both know the rain that night did not fall on the streets. It fell into their very bones. The truth is not the killer. It is the words neither of them dared to say: “I trust you.”
