Deathtrap(1982)

Sidney Bruhl is a formerly successful writer of Broadway thrillers who is trying to recover from the failure of his latest play. When Sidney returns to his wife Myra, a rich woman with a heart problem who is prone to hysterics, he tells her of his jealousy and humiliation upon the receipt of the first play of a former student. The play is called Deathtrap, and it is brilliant. Sidney's wife is horrified when he decides to lure the young writer to their East Hampton home in order to murder him and pretend that the play is his own work. But this is just the beginning of an intense game of twists and secrets.