A brash boxer, Dum-Dum Brooks (Richard Arlen), finds his life tangled both in and out of the ring. Striving to become a champion, he marries a beautiful pianist, Celia Fields (Mary Brian), but his ambitions and ego lead him into the arms of a seductive New York socialite. As temptation and loyalty collide, Dum-Dum must confront the cost of his choices on the eve of his career-defining fight.