Marius, a successful but unhappy husband, and his brother Jovitas, a feckless failure scorned by his wife Nomeda, who just so happens to be Marius’s longtime mistress—plan to confess Nomeda’s pregnancy by Marius at Christmas dinner. Their scheme unravels when their father Kazimieras shocks everyone by announcing his own divorce after fifty years, fearing his wife Alma has been unfaithful.