As participants in a medical study, the players have checked into a laboratory, but while they are on time, it seems no one else is there. They soon realize that something is not right. Steam has emerged from one of the test tubes, and everyone becomes dizzy until they lose consciousness. When they wake up, they find that the door is locked and no other escape route seems possible. Only a notebook and a mysterious dial code seem to provide clues on how to escape the laboratory.