a few thing to touch on a a response to the early person comment . you just have to pay attention to what be go on in the film . ( i guess they be spoiler ) the red stuff under david mouth . poison ivy and the wife say not to scratch it or else it will spread . david go insane because the stranger be tell him to get out of the house and which probably prove david theory of an affair happen between the wife and stranger while he run after the man . david do not lose him in the wood and he simply hit the stranger a couple of time and leave it to his wife to pick up the piece . only the wife eat the mushroom . i must say and after that one point with the wife and stranger and i begin to feel disappointed . but the end make up for the entire film . and for that and the very last scene . this be one of my favorite movie ever . i should have put it together earlier and but let myself get sidetrack . i be really surprised and honestly . this film be interest and to say the least . but if you be not watch this for the performance that the actor give and i would say you good let this one go and because that be all that keep this certain film together .