A beautiful American woman infiltrates the home of a novelist and his wife so she can investigate the disappearance of her lover — who was her employers’ previous secretary — and soon finds herself the target of the couple's erotic desires and a murder plot.
Barbara Bouchet
as Greta Franklin
Farley Granger
as Richard Stuart
Rosalba Neri
as Eleanora Stuart
Dino Mele
as Sandro
Umberto Raho
as Giovanni il maggiordomo
Patrizia Viotti
as Sally Reece
Nino Segurini
as commissario Antonelli
Petar Martinovitch
as Rocco
Bruno Alias
as ospite festa
