Bored with her work in an insurance office and wishing for a singing career, Marge Dexter (Joan Woodbury), goes to the Royal Beach Club for an interview with the owner, Marty Davis ('Bradley Page'). Waiting in his office she sees Davis wounding by a rival gangster, who is killed on the street thirty minutes later. Davis is arrested for the murder but Marge proves his alibi and the grateful gangster offers Marge a chance to sing in his club, and assigns "Gashouse' (Harry Parke, as Parkyakarkus) as her bodyguard. Police Inspector Wayland isn't convinced that Davis is totally innocent, and he assigns two officers who also play in the police band, Pete Cooper (Allan Lane)and Riley (Gordon Jones)to get work in the nightclub's orchestra and keep their eyes. Pete keeps his eyes mostly on Marge.