When young girls start to go missing within a religious cult, older followers fear a long-told prophecy while the younger members suspect abusive elders are killing them off.

A crew of scientists arrives on a far, cold planet to examine archaic artifacts of unknown origin. They discover that their German enemies already have a ship there. When they seek their help after a failed landing, they only find the Germans' bodies, obviously slaughtered by one of the archaic creatures, awoken to new life. Now the alien is after them.

After the funeral of a old friend who died in a car accident, former school friends Harris, Kira, and Sid break into the local cemetery after dark, and after Sid reads a mysterious incantation he finds on one of the nearby tombstones, they dance on the graves. Soon, the three of them find themselves haunted by three different ghosts whose graves they desecrated. Harris and his wife Allison find themselves haunted by a deranged female pianist/ax murdered. Sid gets haunted by a child pyromaniac. And Kira haunted by a sadistic rapist. All of them turn to a paranormal investigator named Vincent Cochet and his assistant Frances to try to help them break the curse they imposed on themselves before the next full moon when they will be killed by the ghosts wrath.

The day Karen and Ed Parker move into their dream home, ominous clues of its chilling funeral parlor past greet them: crucifixes on doors, toe tags and coffin keys in the basement. Their 14-year-old son, Paul, claims he sees apparitions and hears voices. Soon, the house is plagued by dark forces that torment the entire family, and it will take a desperate call to Edward and Lorraine Warren-investigators of the Amityville haunting-to offer any hope of relief.