Footlight Serenade.

Conceited World Champion boxer Tommy Lundy decides to test his popularity in a Broadway show. Tommy always has an eye for the ladies and he starts paying attention to beautiful chorus girl Pat Lambert. Pat's boyfriend Bill Smith isn't impressed with Tommy even though Tommy gets him a boxing part in the show. When Tommy finds out that Pat and Bill were secretly together the night before the show opens, he angrily plans to turn the boxing scene with Bill into a real bout.