In the heat of the summer lays a lonesome house in the countryside where nine year old twin brothers await their mother’s return. When she comes home, bandaged after cosmetic surgery, nothing is like before and the children start to doubt whether this woman is actually who she says she is.
A little girl’s brother kills the whole family but her (she escapes by hiding in the basement). He is committed, and she grows up with a new family, eventually going to college, where she joins a sorority. Due to a memory block, she doesn’t remember that the sorority house was her childhood house. Her brother senses her presence in the house and escapes so he can finish the job he was unable to complete.
Courtney, the sister of a survivor from the 1st movie and the members of her rock band go to a condo for the weekend to play music and have fun with their boyfriends. Courtney’s dreams are of her sister, who is in a mental institution, warning her of having sex, and the dreams begin to spill into real life, threatening Courtney and her friends as they begin experiencing an attrition problem.
An 18-year-old high school girl is left at home by her parents and decides to have a slumber party. Meanwhile, a mass murderer with a propensity for power tools has escaped from prison, and eventually makes his way to the party where the guests begin dropping off one by one.
Amy is ravaged by the notion that she is going to die tomorrow, which sends her down a dizzying emotional spiral. When her skeptical friend Jane discovers Amy’s feeling of imminent death to be contagious, they both begin bizarre journeys through what might be the last day of their lives.
A group of friends pays a late-night visit to the city morgue to surprise Amy (Harris) on her birthday. But the surprise is on them when the one-eyed corpse of brutal psychopath Jacob Goodnight (Jacobs) unexpectedly rises from a cold sub-basement slab. Their wild party quickly turns into a terrifying slay-fest as the sadistic mass-murderer resumes his savage rampage complete with hooks, surgical knives and power saws.