Is a musical about a cabaret singer girl named Deloris Van Cartier. He has a love affair with a married mafioso, named Vince, who kills a man. Deloris sees the murder and to prevent Vince from killing her, he runs to the police. The police chief puts Deloris of incognito in a convent until he can testify against Vince. In the convent, he has many problems with the mother superior, but thanks to his gifts with the music and the direction, manages to save to the choir of the church, gaining the affection of all the nuns.
