Shen Qing comes from a wealthy family and has outstanding looks. Her husband is praised by everyone as a good live-in son-in-law. To outsiders, she is an absolute winner in life, but beneath the perfect appearance, weirdness leaks out everywhere: her active expressions of love are coldly pushed away by her husband, the old nanny mysteriously resigns, and after a new nanny arrives she frequently experiences unexplained vomiting and her body gradually decays. Trapped in a predicament, Shen Qing feigns madness to set up a revenge trap. The chess game has already unfolded: who on earth is the hunter, and who is the prey falling into the trap?