Although this has a loose crime element, it’s mainly a softcore sex movie and is not really effective as a thriller. Outrages aux mœurs (Indecent Behaviour) was filmed as a hardcore and a softcore version and some of the scenes are really different. For instance the lesbian scene, during which the “hero” chains the two women he holds hostages together, becomes ridiculous in the hardcore version, since the shackles mysteriously disappear in order to allow more movement to the actresses. Fortunately, this is the softcore version which is no masterpiece but at least makes a little sense.
This movie was the follow up to Dortoir des Grandes and stars some of the same actors and actresses.