Last Supper is a powerful, voyeuristic and painfully intimate view of two brothers' crumbling marriages in the evening after their mother's funeral. John is a psychologist with a cruel streak. His wife, Charlotte, yearns for her husband's love more than anything else. She has surprised him by inviting his estranged brother, Alan, and Alan's unfaithful wife, Monica, to stay the night following the cremation. The mother's ashes are in an urn on the coffee table and there is a palpable sense of imbalance in the house. John has left the phone off the hook to console Nina, his troubled eleven year-old daughter from a previous marriage, whose mother is out carousing and has left the girl home alone. The phone line between them is open, but what the girl will hear is the dissolving of civil conversation and the ruthless playing out of sadomasochistic psychological games as drinks are refilled and two marriages spin out of control.