A love triangle melodrama set in the world of boxing, this was Hitchcock's one and only original screenplay and one of his finest silent films. When boxer Bob Corby hires Jack Sander to be his sparring partner, he has no idea that he will become smitten with Mabel, Jack's beautiful wife. The conflict between the two men gives rise to an inventive series of expressionist flourishes evoking the characters' states of mind.