1958 Austrian historical film directed by Wolfgang Liebeneiner

1956 West German film by Helmut Weiss

1959 film by Eduard von Borsody

Heidelberg teenagers make jazz music.

The bellboy aspires to be a private eye and is reading a book to learn the trade. The 'suspicious' activities of women in the hotel give him a chance to practice his skills. Surprise! They are representatives of a lingerie manufacturer. To investigate further, he poses as a potential buyer, and the women take turns modeling their wares. This includes demonstrations of how easily the garments come off - making this a film destined for softcore movie palaces in the '60s.