Franco and Ciccio, two journalists, are sent to Amsterdam to investigate a mysterious murder. After having managed to infiltrate the libertine circles of the city, the two take a compromising photo that will get them into trouble.
When Luca's girlfriend Mirna inexplicably dumps him, he finds solace in the arms of two fashion models, Stefania and Claudia. When Stefania mysteriously disappears after photographing herself having rough sex with Luca, Mirna begins sending him the negatives -but to what end? Meanwhile, Claudia searches for her missing friend...
During a banquet, the diners begin to tell various stories to be happy. All the novels speak of betrayals and erotic adventures
