Four amateur parapsychologists travel to an allegedly haunted 14th century castle in Spain to dis-prove the existence of ghosts by demonstrating the existence of residual energies. Team leader, Soren Stefanson, has a hidden agenda and wants to communicate with the energies by taking a self-made hallucinative drug called Spo0k. This causes tragic consequences. Plagued by horrible apparitions of ghosts and lost souls inside the castle, team member Mitchell Deveneaux ingests the drug and now cannot distinguish between what is real or what is imagined. He must fight and find his way out of the castle and his drug induced psychosis, where reality and tricks of the mind cannot be distinguished from the other.