Chloe returns home from a business trip only to catch her boyfriend Liam cheating on her with her best friend Serena. Heartbroken, she meets the sophisticated Arthur at a bar and spends an intimate night with him. The next day, she puts on a calm facade and attends a dinner party at Serena’s house, where she is shocked to discover that Arthur is Serena’s father. After witnessing the two traitors’ illicit affair once more, Arthur proposes a revenge alliance: he will help Chloe punish the unfaithful pair in exchange for equal compensation. Driven by her desire for vengeance, Chloe agrees to submit to his terms, and the two form a secret pact. They launch their counterattack right under the betrayers’ noses, plotting methodically to make the unfaithful couple pay for their wrongdoing.