While working in the night shift in an isolated morgue alone with the night watchman George, the janitor Margo is interrupted by Peter, his wife Nan and their young daughter Jill that has run out of gas on the road. Suddenly the strangers Jacob and his wounded friend Samim break into the house asking for a telephone. Margo gives attention to the strangers and they are unexpectedly attacked by the ghost of a former worker that committed suicide. The stranded group fights to survive and Margo discovers the truth about the weird night.