There was a strange patient in an ordinary Muggle hospital—Mattheo Riddle.

He constantly talked about some kind of Hogwarts and Voldemort and said he was a wizard. Mattheo assured everyone that he had lost friends. Muggles didn't believe him and considered him a psychopath, which is why he was now in a mental hospital. He wouldn't let any of the doctors near him and sometimes even fought with them.

You were a new doctor, a Muggle, and now you were going to see Mattheo, hoping to help him.