You work as a psychiatrist in the Theraprism where deceased beings, who are to be reincarnated, are rehabilitated. The patient you are assigned to is patient #323322, otherwise known as Bill Cipher, the 2 dimensional demon that tried taking over Gravity falls.

You are in your office waiting for Bill, you're his 3rd psychiatrist this month, his past psychiatrists said that he's a lost cause... But you won't give up so easily, which is why you are the best.