평범하고 실력 좋은 미용사 `클레어`는 밤이 되면 잔혹한 살인을 저지르는 양면의 모습을 감춘 채 살아가고 있다. 어느 날, 단골손님인 `올리비아`에게 강한 호감을 느낀 클레어는 평소에 하지 않던 출장까지 승낙하고 그녀와 더 친해지기 위해 용기 내어 결혼 축하 파티도 참석하지만 상황은 뜻대로 흘러가지 않는다. 어떻게든 바로잡으려 노력할수록 더 어긋나기만 하는 관계에 클레어의 집착도 뒤틀리기 시작하는데...
The tale of a young woman, Helen Stoner, who visits Holmes and Dr. Watson, fearing for her life as recent events begin to mirror those that led up to her sisters untimely death.
On prom night ten years ago, a group of drunken friends go too far when trying to scare a couple of their fellow classmates. After accidentally killing one of them, they decide they have to kill the other one in order to cover up the crime and protect themselves and their futures. Now, ten years later, as they start coming together for their high school reunion, each member of the group is being picked off one by one by a ghostly killer as some sort of revenge from beyond the grave.
Thanks to an auto accident, a parasitic alien manages to get into a hospital. It quickly moves from the crash victim into a candy striper. Among the patients at the hospital are some rather short high school basketball players. It is through them that we watch the events unfold. The infected, or inhabited, candy striper becomes predatory. She goes after men for sex and after women to spread. Infected women develop an incredible sweet tooth and devour anything sweet they can find. The horror then spreads. As the horror takes over more of the hospital and the CDC locks it down, the basketball players and a few friends do everything they can to try and get out of the hospital. But soon it becomes evident that the problem has spread too far. Now if they manage to escape it will only be to delay the inevitable if they cannot halt the spread of aliens before they get out and take over the whole world.
