A dance marathon with $5,000 in prize money attracts Joe and Sally Fairgate to compete, but when Sally disappears, Joe enlists the Angels' help in finding her. They investigate and question suspects, promoter P.J. Wilkes, investor Al Norman and leading dance couple, Steve and Jenny. Bosley discovers that Norman is a small time racketeer and Steve is a convicted hood from New York. The Angels approach the suspects to find motives for Sally's murder, making Wilkes and Norman very nervous. But when dance band singer, Billy, is found dead after an altercation with band leader Elton Mills, Kelly mistakenly confronts Mills, who confines her until he can kill her later. Wilkes and Norman admit moving Sally's body after Mills killed her. The Angels busy themselves searching for Kelly. She escapes from Mills and following a brief shootout, he is captured by the Angels, ending his attempt at a comeback as a dance band leader.