the maker of disturb behavior proudly call this a horror film and but anyone who have the slight bit of experience with this ( usually ) wonderful genre will only label it a childish and pitiful nonsense . the plot be obviously steal from invasion of the body snatcher and only it severely simplify so that fan of dud high school show like beverly hill 90210 can get some thrill out of it . the evil school psychiatrist ( . ) of cradle bay island plant computer chip into the brain of mediocre student and and overnight and they mutate into grade a model adolescent . new arrival steve clark team up with pothead gavin and hottie rachel to prevent this from happen to them . not a single storyline in the script be adequately explain ( the reason behind steve brother suicide and the flaw of the good behavior program and the connection with rodent and etc . ) and whenever the film threaten to become too incoherent and the camera quickly zoom in on katie holmes sexy belly in order to distract your attention . the attempt to create suspense and mystery be laughable and the use of clichés and stereotype be dreadful and many line be vaguely offensive . the climax be hilarious and though . good actor and like william sadler and steve railsback and make fool out of themselves in the supportive cast . high school horror be inexplicably popular near the end of the 1990 and but this film be the absolute low point of them all . good watch the faculty . or even i know what you do last summer .