Lord Hugo Bruckton is a young Englishman who is the heir to a vast fortune. He is married to Ginny, who seems devoted and loyal to him, and they have a young son. But Hugo is haunted by jealousy, for he imagines Ginny in the arms of a colleague. He begins to spy on her and goes into a rage over her suspected infidelity. One night, after a social gathering with members of his old British Army regiment, Hugo and his friends go out for a drive. He accidentally runs over a woman, who dies at the scene. All but one of his friends urge Hugo to drive on. In his drunk state of mind, Hugo had imagined himself running over Ginny.