The only actor to win an Oscar for a Hitchcock movie, Fontaine suits the part so well and she gets more and more concerned about the safety of her life and she does everything she can to stay away from murder.
Her husband is played by Cary Grant and he gives a good performance in the first of his many films working with the great director. There is also good support from Sir Cedric Hardwicke.
Hitchcock's direction is excellent and the atmosphere is very tense in places, and the dramatic climax will leave you talking about this movie for a very long time.
This is one excellent film-noir.