Il tuo vizio è una stanza chiusa e solo io ne ho la chiave

Oliviero is a burned-out writer, living at his estate near Venice, his dead mother dominating his imagination. He is also a degenerate: sleeps with his maid and his ex-student, hosts Bacchanalia for local hippies, and humiliates his wife Irina in front of strangers. She lives in terror. When a young woman is murdered, police suspect Oliviero. Things get complicated when his young, beautiful, and self-confident niece, Floriana, pays an unexpected visit. A silver-haired stranger observes. More women die, and thoughts of harming Irina give Oliviero new inspiration. What's Floriana's game and who's the observant stranger? Watching all is a black cat named Satan.

Gilera 175 Regolarita

Make: Gilera
Model: 175 Regolarita
Tags: background vehicle

Gilera? this is the bike seen after the Laverda crashes Below is Not essential to the bike's ID ...but I think you'll like it.! Peut-être même une 175 Regolarita competizione... (forme du réservoir...)

This bike is used for the crash in place of the nice Laverda.

Laverda 750 SF

Make: Laverda
Model: 750 SF
Tags: chase

This one is either late 1971 or 1972. It has the new shape tank but still has the Smiths instruments and a drum front brake. SF refers to 'super freni', the new type of drum brake used from 1970.