no one good spoil this piece of work . awesome movie . write expertly by the like of ira levin and depict with the best performance of christopher reeve career and one of caine very best and this be simply excellent . i wish i could catch a staged version somewhere . maybe someday i will . i hope this grossly underrated and overlooked film have not become too difficult to locate because it a amust for any hitchcockian and agatha phile or lover of great film . one of very few movie i couldn not instantly solve or predict and worth a second or even third viewing and deathtrap get a positive and earn every iota of it . we need and deserve more movie like this .