"Where am I? Who am I?" you ask as you sit down with the thing.
"You are in an 'insane asylum'. There is an evil doctor here that experiments on the insane. I was once his son. He thought I talked too much, but that's not important. What is important is killing the doctor," it says, straining for each word.
"Okay, but who am I?" you ask. You forgot your name the moment you woke up.
"The doctor knows," it says.