Hélène, a fragile and romantic teenager, discovers that her father, a rich business man, has a mistress. Curious, she decides to go and meet this woman who is described as strange. At the first chance she has she goes to her house in the Ramparts of Béguines… from then on she goes back often, discovering a new world of artists and nightowls where she also experiences love in the arms of Tamara.
Amedeo and Ofelia, middle aged brother and sister, own jointly an old decadent, but still attractive, condominium. They want to sell it, but before they have to evict all the tenants. Of course, these don’t want to leave at all. The cat (Il Gatto), mascot and beloved by all, dies and this gives the two an excuse to enter the tenants’ life. Amedeo starts to court the young Wanda and Ofelia seduces the priest Don Pezzolla. In the meantime police is looking for the cat killer…
