Archival interview with the co-writer of Max Ophuls' 1953 film THE EARRINGS OF MADAME DE...

A group of friends listen as one man tells them a story about a time when, in a small cafe, he discovered a peephole into the ladies' bathroom and became addicted to looking through it at female genitals. They ask him questions and come to conclusions about sex. This is a filmed, scripted version. Then, the actual person who this happened to relates the same story; this time, however, it is an unscripted documentary, in which the same things occur as in the scripted one.

In Paris, three models are murdered, being one of them the mistress of the fashion designer Dominique Airelle. It is the young inspector who is in charge of the affair.