A Stranger in the House

Tom awakes the next morning to a loud banging on his front door. He goes downstairs in his robe and opens the door to the police. They are there with a warrant to search the house. Tom calls the lawyer Jack Calvin and informs him of the search. Calvin advises Tom to let them in. The police search a toolbox in the garage and find the gun. Tom is shocked because he had searched in that toolbox while Karen was in the hospital and hadn’t found anything.

Tom tells Calvin the police found the murder weapon in the garage. Calvin tells Tom to meet him at the jail so they can discuss it with Karen. Tom realizes Brigid must have planted the gun in the toolbox.

Karen meets with Calvin and Tom. She is stunned to hear about the discovery of the gun. Tom confesses to Calvin and Karen that Brigid has been obsessed with him since he broke off their affair before he met Karen. He tells Karen that he slept with Brigid after Brigid threatened to go to the police with what she had seen the night of the murder. He thinks Brigid picked up the gun from the murder scene and planted it in their house.