Two Chicago musicians, Joe and Jerry, witness the Valentine's Day Massacre. Fearing the gangster Spats Colombo, the two flee. On their journey to another state, they meet Sugar Kane Kowalczyk and her all-female band and spontaneously join the group \u2013 with new identities. Disguised as women, they now perform as Josephine and Daphne. But it doesn't take long for the next trouble to arise...