Naked In The Night (1958)

aka’s: Madeleine Tel. 13 62 11/
Madeleine

Beautiful criminology student Karin (Sabine Sesselmann) poses as a prostitute to gather information first-hand for her thesis. The pretty blonde is hired on the spot by the nefarious Madame Clavius (Ilse Steppat), proprietor of Berlin’s most elite brothel. Karin is deeply distressed when she meets her old friend Madeleine (Eva Bartok) and finds that her luxurious lifestyle has been financed by her years as a call-girl. What’s more, Madeleine is in love and wants to quit the racket. The trouble is whenever a girl attempts to leave Madame Clavius’ establishment, she is found dead.