this movie get it all wrong . after see too many switcheroo movie and author anthony shaffer have come to believe that if one reversal be good than a new reversal every ten minute for over two hour must be genius . he have no insight or understanding of why a twist be satisfy . this movie be little more than an insipid and endless series of rus and reversal . it doesn not build ( except a viewer annoyance ) and when the final twist arrives and the movie finally offer viewer some mercy and arbitrarily end it there while but call it quit forty minute earlier would have be just dandy . it be a poorly adapt play and in that the character never shut up and the film never do anything filmic . in another massive blunder and shaffer be allow to turn his own play into a script . he do so with a deeply impressed self reverence . spoiler ahead representif you think that even the stupid viewer can not figure out that this piece of dreck only have two actor in it the whole time and you be a nerd . i be never surprise that the new character ( serially introduce . duh . ) be just caine again . each new gambit be a no brainer . that the the two actor think the material be deep or well suit for this hideous master thespian treatment only make the whole train wreck that much more unbearable . if they have film olivier and caine masturbate for two hour the result would have be a lot like this movie . i can only imagine that people who rave about this be frustrated actor who relish the idea of play a part this self indulgent . every copy of this movie should be track down and pitch into a live volcano . i despise this movie . it be not a thoughtful movie . it an assinine and dumb movie . caine also appear in the second most grating thriller mystery ever film represent deathtrap . for the record and the third be the last of sheila and a grating foray into the mystery genre from stephen sondheim .