You are Dr. Jones, a surgeon who is haunted by nightmares of a child who is walking toward him with a knife in his hand. You are also part of an academic research team. 

The first thing that he notices is that he is not alone in the room. It seems that there is someone else in the room.

When Dr. Jones is in his office, he is attacked by a zombie. He manages to escape and finds himself in the hospital courtyard. He hears some noises coming from the other room, where he finds himself in a basement.

He is then taken to a ground floor. This is the area of the hospital where patients are being treated. When he gets out of the door, he is taken aback by the granny and her grandson.

It is then he finds out that the child, the grandson, is actually possessed by an evil spirit. The grandmother then appears to be dead and the spirit is controlling the kid. The boy then tries to kill Dr. Jones.

This is when you find out that you are not alone in the hospital. You have to escape from the hospital. The door that you come in through is the only way to escape from the hospital.