A young doctor running a health farm for polio victims is dazzled by a pretty and wealthy society girl, to the detriment of his patients and the woman who really loves him.

When an escaped circus gorilla appears to have gone on a murderous rampage, a threatened attorney calls on the detective trio of Garrity, Harrigan and Mullivan to act as bodyguards. In short order, we discover that there is more to the attorney than meets the eye, and the ape may be innocent after all. When a pretty young heiress faces peril, it’s up to our heroic trio to save the day.

James Cagney has a rare chance to show his song-and-dance-man roots in this low-budget tale of a New York bandleader struggling with a Hollywood studio boss.