Unknown dramatist, Clifford Anderson, has sent his new thriller, ‘Deathtrap’, to award winning Broadway playwright, Sidney Bruhl, for comment. Without a success to his credit for some years, Sidney plots, together with his reluctant wife, Myra, about how best o plagiarize ‘DeathTrap’, but when Clifford arrives at Bruhls home to discuss his play with the ‘Master’, event take several sinister turns…!!