 Roommates Chloe, Josh and Stuart arrange to use the University s facilities for an amateur experiment to see if they can cure Stuart s increasingly common nightmares. Justine arranges to supervise the seemingly innocuous procedure over night. When Stuart starts to dream his nightmares come to life, starting with visions that Justine experiences. Calling in Douglas to help determine what s happening, Stuart s dreams take on more and more menace and the group becomes trapped inside the building while his nightmares run rampant.