

There are no save points in the game, and instead of score points the player's progress is stated as a percentage and a time counter. When Steve dies, the game returns to the scene in the operating room where the surgeons attempt to save him. He can also die if he remains too long in certain areas such as the Country Garden, where a lawnmower will come and decimate him. He immediately dies if he comes into contact with an enemy or an obstacle.

Steve has no health meter, but there is a heart rate monitor, which goes from 75bpm (normal) to 100bpm (in frightening situations) to 170bpm (shortly before death). He can collect certain weapons and items on these levels, but with a few exceptions, cannot carry them to another level. Steve is controlled by the player through numerous surreal worlds. The game starts where the novella ends, with Steve lying on the operating table and slipping into the dream world.

Under an anaesthetic, he slips into one more dream, possibly his last. After his health dramatically declines, Steve undertakes brain surgery in an attempt to stop the dreams. Steve's psychiatrist does not understand what causes the dreams, and neither does Steve. His dreams become both more lucid and strange, each one getting more intense and painful. While the pills do cure him, they also grant Zelloripus access to his body and mind. She tricks Steve to take three pills she has mixed to "cure his flu". Emily sees a chance to let someone else suffer and stifle her boredom.

Unbeknownst to Steve, Emily is possessed by a daemon named Zelloripus who was banished to Earth, stripped of most of her powers, and trapped into a human female due to unspecified crimes done to other daemons. Steve is in love with his attractive coworker Emily. The background story is told by a 64-page novella with 19 chapters written by Rupert Goodwins.
