Directed by Brian De Palma, Dressed to Kill (1980) is a stylish and provocative psychological thriller that merges Hitchcockian suspense with Italian Giallo influence.
When a mysterious murder shocks Manhattan, a call girl, a teenager, and a psychiatrist become entangled in a dangerous web of desire, deception, and identity. A bold mix of eroticism and razor-sharp tension.

Arrow Films

After sexually frustrated housewife Kate Miller (Angie Dickinson) has a session with her psychiatrist Dr Elliott (Michael Caine), she silently seduces a man in an art gallery, an assignation that ends in murder and the only witness, high-class prostitute Liz Blake (Nancy Allen) being stalked by the killer in turn.

One of Brian De Palma's darkest and most controversial suspense thrillers, Dressed to Kill was as acclaimed for its stylish set-pieces and lush Pino Donaggio score as it was condemned for its sexual explicitness and blatant borrowings from Alfred Hitchcock in general and Psycho in particular.

But the glee with which De Palma turns this material inside out is completely infectious, as he delves deep inside the troubled psyches of his characters (critic Pauline Kael said that the film was "permeated with the distilled essence of impure thoughts") in order to undermine expectations at every turn.

Awards and Reviews:

"the quintessential New York erotic horror-comedy of the grindhouse heyday" - Slant

"a spine-chilling Alfred Hitchcock update for the late 1970s" - NYTimes

"Filled to the brim with DePalma's characteristic visual flair, Dressed to Kill is an amazing film just to look at" - Reel Film

Från IMDB:
A mysterious blonde woman kills one of the patients of a psychiatrist and then goes after the high-class hooker who witnessed the murder.