This is one of the two poster available for Alberto De Martino's Femmine insaziabili. The one I've managed to find so far has the Gli insaziabili title (which imdb lists as a working title), but there's a Femmine Insaziabili one around as well.
The film itself is a quite decent thriller set i LA where Italian journalist Paolo Sartori (Robert Hoffman) tries to find his friend Giulio's murderer. I think I've expressed my dislike for Hoffman in earlier posts here, but he's actually ok in this. Joining him in the cast are Frank Wolff, Luciana Paluzzi and Romina Power and the film also features a fantastic swinging score by Bruno Nicolai.