A vicious serial sex killer is on the loose, and landscape gardener and shop-window outfitter Loris is the prime suspect, thanks to his unfortunate habit of getting caught in compromising situations (for which there is always a totally innocent explanation that the police fail to spot). Undercover policewoman Jessica is assigned by eccentric police psychologist Taccone to follow Loris.

Roberto Benignias Loris
Michel Blancas Paride Taccone, le psychiatre
Nicoletta Braschias Jessica Rossetti
Dominique Lavanantas Jolanda Taccone
Jean-Claude Brialyas Roccarotta
Laurent Spielvogelas commissario Frustalupi
Franco Mescolinias il professore di cinese
Massimo Girottias il condomino distinto
Carlo Di Palma