Early Hitchcock silent. Champion prizefighter 'One Round' Jack Sander (Neil Brand) is distraught to discover that his rival in the ring, Bob Corby (Ian Hunter), has become a rival in love as well. Corby has been making a play for Jack's flirtatious wife (Lilian Hall Davis), a dalliance which inevitably heightens the tensions between the two men when they meet in the championship finals at the Albert Hall.