Police detective Paolo Germi and the mysterious Marisa meet each other at a dance hall. Germi is unsuspecting of the secret Marisa is carrying with her: adverse conditions forced her into prostitution. As Germi finds the young girl brutally murdered, he decides to go after her killers. During his investigation, he enters a world of intrigue and obfuscation that leave an endless trail of blood.

Two young boys compete for the same girl - a third enjoys from a distance . Two men are abusing a girl. Three men desires a married woman. Two nuns get out in the nice weather with a bunch of monks.

Seven novels of Boccaccio featuring dirty jokes.