this movie have no physical violence and but it truly scary . chad be evil . he hurt others feeling for the pleasure of show himself that he can . he have an explanation for his cruelty and but that just to draw howard in to play his game . without that explanation and he would still find reason to be cruel and because his pleasure come from see others in pain . bad and he can get away with his cruelty and because he be charm and charismatic and and effectively manipulative in his dealing with people . except in the central plot and he manage to hurt people without take the blame and by make his victim blame themselves . howard be both a victim and a willing participant in chad evil plot . without people like him and people like chad be much less able to hurt others . but people who be too weak to stand in the way of bad people be fairly common . even those weak enough to be draw into the plot of bad people be common enough . even a person strong enough to foil chad plot could only have do so if he have know about it and and chad knew not to trust his plan with such a person . howard have a chance to be the hero and but he be too weak and become another villain . the central victim and christine and start out suspicious and but be draw in by chad skillful manipulation and and to some extent howard real interest in her . chad be also good at choose a victim who would fall for the plot and just a he choose an accomplice effectively . other victim have other weakness that chad find way of exploit and like the man whose speech he mock in a way that make that victim feel like he himself be to blame . most people have never meet a serial killer and but many have meet people like chad and who enjoy hurt others . the fact that chad be an example of a more familiar type of evil make him much scarier . he more chilling because he doesn not have a clear reason for his badness he just enjoy be cruel . what be scary than an evil that one can imagine fall victim to in everyday life .