hours are revealed to have been an elaborate ruse to kill Myra. Clifford moves in with Sidney and the two work together at a partner's desk. Sidney suffers from writer's block but Clifford busily types page after page of a new play that he suspiciously keeps under lock and key. While Clifford is out grocery shopping, Sidney tries to break into the drawer but fails to before Clifford returns home. He waits for Clifford to retrieve his play, then switches Clifford's manuscript with a fake. Sidney is horrified to read that Clifford is using the true story of Myra's murder as the basis of a new play called Deathtrap. He angrily confronts Clifford, who boasts about the play's potential and insists he will write it with or without Sidney's approval. Clifford offers to share the credit with Sidney, who comes to believe that Clifford is a sociopath. Sidney plays along with the collaboration on Deathtrap while he plots a solution. A few days later, Helga stops by, ostensibly for candles in anticipation of a predicted thunderstorm. Almost immediately after meeting Clifford, she warns Sidney that Clifford is the man in boots. Sidney asks Clifford to arm himself with an axe to demonstrate a bit of stage business, then produces a gun. He intends to shoot Clifford, claim it was in self-defense and dispose of the Deathtrap manuscript. But Sidney finds his gun to be empty. Clifford had anticipated some such scheme from him and has loaded the bullets into a different gun. Clifford now intends to use Sidney's attempted betrayal-and-axe scheme in the play. He secures Sidney to a chair with manacles and tells him he is going to pack up and leave. He warns Sidney to not try to stop the production of the play. However, Clifford is unaware the manacles are trick shackles, once the property of Harry Houdini. Sidney easily releases himself, grabs a crossbow and incapacitates Clifford with a single shot. Before Sidney can dispose of the body, the storm hits with full force and the house suffers a blackout. A flash of lightning illuminates the living room and a fleeting figure scurries through. It is Helga, thinking Sidney is in danger and coming to help. She realizes that Sidney actually poses the threat and grabs a gun while Sidney finds a knife. Clifford regains consciousness and trips Helga. The gun goes flying and a struggle