A quick flashbang takes care of the only guard, the locks are defeated in a matter of seconds, and any chance of mistaken identity is instantly washed away by the wallpaper - hundreds of newspaper clippings of recent college disappearances pasted up around empty cans of petrol and booby traps.
In the final room, a terrified girl rolls on the ground, her hands tied, her face covered by an eyeless white mask that dangles down from the ceiling. One last door opens into the killer's underground ...