As subjects of a medical study, the players have checked into a laboratory, but while they are on time, it seems no one else is there. Then they realize that something is not right. Steam has emerged from one of the test tubes, and everyone has become dizzy until they faint. When they wake up, they find that the door is locked and no other exit seems possible. Only a notebook and a mysterious dial code appear to provide clues on how to escape the laboratory.