Misaligned repayment

Li Mingyuan accidentally discovers that his wife, Chen Qing, is having an affair with his childhood friend, Wang Zihao. For years of marriage, Chen Qing has lied about being frigid and refused to be intimate with Li Mingyuan, but she has been secretly having an affair with Wang Zihao. So Li Mingyuan sets a trap, leading Chen Qing and Wang Zihao step by step into it, watching them fall into it.