Twinless is a 2025 American black comedy that explores the life of Roman as he copes with the death of his identical twin brother, Rocky. Roman, who is introverted, returns to his hometown for the funeral and struggles with his grief and identity. In a twin bereavement support group, he meets Dennis, whose personality strikingly resembles Rocky's. A profound friendship develops between them, challenging and comforting Roman as he navigates his loss.