Deathtrap

“The trap is set... For a wickedly funny who'll-do-it.”

Sidney Bruhl (Michael Caine), a Broadway playwright with a string of flops behind him, gets a script in the mail from a student, Clifford Anderson (Christopher Reeve), and sees a sure hit he did not write. He starts working out how to take it, and murder is part of the plan. Sidney Lumet films the Bruhls' house like a stage set and keeps the cast moving through it at a fast, nervous clip.