This film begins with Brigitte Bardot falling in love with a dentist (Henri Vidal) and they soon marry. Soon after, he is seduced by a lady and goes back to her apartment. He begins to undress her and stops himself--he can't allow himself to cheat on his bride. He immediately leaves--not knowing that she is a blackmailer and her lover was photographing them in some very compromising positions. This begs the audience to wonder if any man can be THAT stupid and self-destructive, as at the time, Bardot was probably the most beautiful woman in the world (and, yes, I know there ARE men who cheat on their loving wives all the time--even if it makes no sense).
Soon, the lady blackmailer shows up at the Dentist's office and demands money for the photos. A sane man would come clean to his wife right there and then, but this would also make for a VERY short film, so he agrees to meet her later at her dance studio. The poor husband plans on killing the woman but before he can, she's already dead--apparently she has created a lot of enemies! Brigitte arrives soon after him, as she'd overheard the two talking earlier and wondered what was happening between them. Both Bardot and her hubby flee to avoid the police.
Bardot believes her husband when he tells her what happened. However, someone saw him at the studio and the police have a good description of him. So, to save her dumb husband, Brigitte decides to go undercover--and goes to the dance studio to ask for a job. Perhaps someone there knows what happened or was responsible for the killing. And, as this is only about thirty minutes into the film, you can safely assume that SOMETHING will occur sooner or later! This part of the film seemed well-suited for Bardot, as she was an exceptional dancer in real life.
Where the film goes next is pleasant but there aren't too many surprises. Plus, while I like Bardot, this film seemed only okay--nothing special but also not bad in any particular way. The writing is decent, the acting just fine but apart from the role played by a gay transvestite, the rest of the film just seemed ordinary. Non-Bardot fans can skip this one--it's just among her best.
By the way, like many French films of the era, this one if pretty frank about sex and sexuality. You will see some nudity it's obviously quite different from the sort of fare coming out of Hollywood at the same time!