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...
Ugo Tognazzi
as Amedeo Pecoraro
Mariangela Melato
as Ofelia Pecoraro
Michel Galabru
as Francisci
Dalila Di Lazzaro
as Wanda Yukovich
Jean Martin
as Legrand
Aldo Reggiani
as Salvatore
Adriana Innocenti
as The 'Princess'
Philippe Leroy
as Don Pezzolla, the priest
Armando Brancia
as Police Chief
Mario Brega
as Rosario Calascibetta, a killer
Pino Patti
as The super
Fabio Gamma
as Gangster
