on a rainy night, the rogue detective brother wen met xiaowei, a street girl, and the two entered the room together. just when they were intimate, the underworld brother tao kicked open the door. brother tao said that brother wen touched his woman xiaowei. it turned out that this was the "immortal jump" designed by xiaowei and brother tao. the two blackmailed brother wen. during the battle, a body fell out of the wardrobe with a "slap"... a young woman who fell into trouble, a gangster detective, a gangster, and a wife who was raped by domestic violence. who is the murderer? what kind of shocking secrets are hidden behind all the characters' intricacies, absurd behaviors, and selfish purposes?