A mental hospital is attacked by a murderer who hates the mentally disabled. The staff are killed and the patients must work together to defeat the murderer and escape. The main character is Daniel Myers, a small, weak man with schizophrenia who would be played by Jesse Eisenberg. The killer is a large, strong man whose face is covered for most of the movie, and would be played by Rory McCann. Guillermo Del Toro would direct to add layers of fear from the characters' hallucinations. The target audience is 18-25 year olds interested in slasher films. The isolated filming location in Scotland adds to the fear of being cut off with no escape in the cold weather.