Sidney Bruhl (Michael Caine) is a struggling playwright. His latest Broadway play is a critical flop. He retreats to his Long Island home with his wife Myra (Dyan Cannon). He has a copy of a play called Deathtrap written by his student Clifford Anderson (Christopher Reeve). He's bitterly jealous. She wants him to produce it. The question is would he kill for a new play. He invites Clifford to the remote house and bring the original drafts. The discussion breaks down and Clifford wants to send copies of the play to various agents.
There is a bit of tension with Clifford in handcuffs. The story meanders after that. It needs to build on that tension. Then comes the twists. The twists are fine but I need more tension. Sidney Lumet may be more concerned about the kiss which is not so shocking nowadays. This may work better as a play. There are some fair back and forth in the last act but I don't care about which ever way it could turn out.
There is a bit of tension with Clifford in handcuffs. The story meanders after that. It needs to build on that tension. Then comes the twists. The twists are fine but I need more tension. Sidney Lumet may be more concerned about the kiss which is not so shocking nowadays. This may work better as a play. There are some fair back and forth in the last act but I don't care about which ever way it could turn out.