Teacher Wang, a 'mistress dispeller' in China, uses psychological insight to quietly dismantle extramarital affairs by gaining trust and reshaping perceptions, making cheaters believe ending the affair was their own idea. Elizabeth Lo’s documentary captures this delicate manipulation over three years, revealing the emotional toll on all involved—especially women who bear the invisible labor of saving marriages. As Lo films, her own engagement collapses, echoing the imbalances she observes. Initially blaming Wang’s pessimistic predictions, she later realizes her breakup stemmed from unresolved immaturity and mismatched values. Through Wang’s guidance, Lo gains clarity, transforming heartbreak into self-awareness. The film becomes more than a study of infidelity—it’s a meditation on love, autonomy, and the quiet work of emotional repair. Ultimately, both the subjects and the filmmaker confront the painful truth that sometimes, endings are necessary for growth.