Martha
After the death of her abusive father, lonely librarian Martha finds herself caught up in a strange, sadomasochistic relationship with a monstrous husband whom she begins to suspect may be trying to murder her.
Margit Carstensen
Martha
Karlheinz Böhm
Helmut
Barbara Valentin
Marianne
Peter Chatel
Kaiser
Gisela Fackeldey
Mother Heyer
Adrian Hoven
Father Heyer
Ortrud Beginnen
Erna
Wolfgang Schenck
Meister
Günter Lamprecht
Dr. Salomon
El Hedi ben Salem
Hotel Guest
Rudolf Lenz
Porter
Kurt Raab
Secretary
Elma Karlowa
Waitress
Heide Simon
Nurse
Lilo Pempeit
Ingrid Caven
Ilse
Michael Ballhaus
Restaurant Patron (uncredited)
Peter Berling
Taxi Driver (uncredited)
Rudolf Waldemar Brem
Telephone Man (uncredited)
Karl Scheydt
Marianne's Husband (uncredited)
Herbert Steinmetz
Dr. Hauff (uncredited)