 Brandon and Philip are two young men who share a New York apartment. They consider themselves intellectually superior to their friend David Kentley and as a consequence decide to murder him. Together they strangle David with a rope and placing the body in an old chest, they proceed to hold a small party. The guests include David s father, his fiancée Janet and their old schoolteacher Rupert from whom they mistakenly took their ideas. As Brandon becomes increasingly more daring, Rupert begins to suspect.