Karla, a bar dancer, shoots her lover Mayer during a break-up. She hides from the police in pianist Pavel Ryant's apartment and promises to return when she leaves. The next day, however, Karla is arrested and convicted. In the penitentiary she meets the warden, Angelika, a nun who is very much like her. She begs Angelika to lend her clothes for a few days and leaves the prison as a nun.