Irene Wagner, the wife of the prominent German scientist Professor Albert Wagner, had been having an affair with Erich Baumann. She does not disclose this to her husband, hoping to preserve his innocence and their "perfect marriage". This fills her with anxiety and guilt. However, Johanna Schultze, Erich's jealous ex-girlfriend, learns about the affair and begins to blackmail Irene, turning Irene's psychological torture into a harsh reality.

Ingrid Bergman
as Irene Wagner

Mathias Wieman
as Professor Albert Wagner

Renate Mannhardt
as Luisa Vidor aka Johanna Schultze

Kurt Kreuger
as Erich Baumann

Elise Aulinger
as Martha, Wagners' Housekeeper

Edith Schultze-Westrum
as Wagners' Babysitter

Steffi Stroux
as Luisa Vidor's Friend

Annelore Wied
as

Rolf Deininger
as (uncredited)

Albert Herz
as (uncredited)
CinemaSerf
Ingrid Bergman is "Irene" married to "Albert" (Mathias Wieman) but has been having an affair with the much younger "Erich" (Kurt Kreuger). The relentlessness of the secret-keeping takes it's toll and "Irene" tries to end it all. Her secret is not quite as safe as she had thought, though - and she so...