Gerlinde Locker plays a singer trying to succeed in the gangster-ridden German nightclub circuit. To supplement her income, she works at a talent agency adjacent to a club run by mobster Rolf Kutschera. With the help of club musician Tommy Rupp, the girl is hired to sing for Kutschera, which drives his mistress, dancer Kai Fischer, into a jealous rage. Fischer tries to murder Locker, with surprising results. Kutschera himself comes to grief at the hands of a cop working undercover at his club. ~ Hal Erickson, All Movie Guide