A successful and seemingly well-adjusted adult man discovers he was unknowingly part of a study about children of divorce, a revelation that throws his self-assured life into disarray. This discovery leads him back to the researcher who studied him, hoping to gain some insight into his current state of mind and relationships. As he delves deeper, he is coerced into taking on the unwelcome role of mediator between his bitterly divorced parents, who haven't spoken in years, in preparation for his younger brother's upcoming wedding. The task proves to be daunting as old wounds are reopened, and family dynamics are tested.

In his efforts to navigate the choppy waters of familial obligations and personal grievances, he finds himself sandwiched between his feuding parents, attempting to bridge the gap while keeping the peace for the sake of his brother's nuptials. This task is made increasingly complicated by the arrival of new lovers and the rekindling of old flames, which bring to light long-buried secrets and lies. Amidst the chaos, he is forced to confront his own views on love, marriage, and commitment, prompting a journey of self-discovery that challenges his perceptions of what it means to be an adult child of divorce.