Psychiatrist Newton is tired of his wife's many affairs, and plans the perfect revenge against her latest lover. There's this little dog, though, and a mild-mannered man from Scotland Yard. . .

Wonderful crime film, with excellent performances all around. Those who only know Newton as Long John Silver would do well to watch this film and see what a fine, nuanced actor he could be. While not spoiling the ending, perhaps the best thing about this film is that all the protagonists seem to learn and grow from their experiences. This is rare enough in any film, but in a thriller, it's wonderfully unexpected and welcome. Very highly recommended.