Renzo Montagnini plays an unsuccessful small-town architect who lives with his sister and unemployed, would-be communist brother-in-law. He is mostly famous, however, as the town lothario, bedding numerous wives and fiancées, and adult daughters of other local men (with or without their knowledge). He is first seen in the movie in the town bell tower when he pops up from beneath a shapely, gyrating female derrière, and this is only the first of MANY sex scenes. He keeps a secret diary of his exploits which would certainly scandalize the entire town if discovered. After he rescues the daughter (Sherry Buchanon) of a wealthy American industrialist (John Ireland) from a suicidal drowning, the troubled young virgin naturally falls for him--and he for her--but when he realizes the entire town is encouraging the relationship for their own purposes, he decides to get back at them all. . .
Montagnini was certainly a good comedy actor, but he was not particularly believable as the sought-after stud (even though he played this role several times in Italian movies). Italian comedies of this era tended to be divided into two categories--the more silly ones and the more satirical ones. Montagnini was mostly known for the former, but this one veers toward the latter (especially at the end), but there are still many scenes of silly bedroom farce such as one where Montagnini's "scoring" with the sexy baker's daughter is intercut with her father and fiancée who are off watching a different kind of scoring at a soccer match.
The female cast includes Roseanne Podesta as the town prostitute, who ironically is the only woman with whom the hero has a platonic relationship. The lovely and mysterious (American?) actress Sherry Buchanon is good as always, but she could have used more screen time. The rest of the actresses are purely functional (i.e. they're basically there to get naked). Anna Zinneman was especially memorable as "Stella Shining" in the giallo/softcore porn flick "The Sister of Ursila", but I'm not exactly sure who she was here (maybe the girl in the bell tower?). The VERY voluptuous Patrizia Webley appeared in any number of Italian movies during this era, always in minor roles that involved her spending way more time with her clothes off than on. She actually has one of her best roles here as the pharmacist's wife whose husband spies on her through a two-way mirror while she's with the protagonist.
The ending is kind of lame, but this is generally worth seeing I guess.