Farligt löfte ble utgitt 24. oktober 1955.

Farligt löfte ble regissert av Håkan Bergström.

Farligt löfte har en spilletid på 82m.

Farligt löfte ble produsert av Otto Scheutz.

Åke is married and has a daughter of 11 years. He has a relationship with Ulla, who lives in the same house. Previously, Ulla had a love affair with Bertil, who lives and works on the same street. He spies jealously on Ulla and then discovers her relationship with Åke. One Saturday night Ulla is found dead by her landlady. Åke's little daughter has witnessed who visited Ulla that evening.

Hovedpersonene i Farligt löfte er Bertil Strand (Herman Ahlsell), Ulla Brantman (Inger Juel), Åke Tomason (Bengt Blomgren).

Farligt löfte er en Crime, Thriller-film.

Farligt löfte har en publikumsvurdering på 5.5 av 10.