He hallucinated, "looking for this imaginary person" in his house while wielding a kitchen knife. As they wrestle over the sedative, Payton is revealed to have hallucinated Gallo. It abruptly becomes obvious that he hallucinated the encounter. Much of Part Four takes place within the presumably hallucinated "Raketen-Stadt", a fascist futuristic dystopia. In his dying moments, Hex hallucinated and reflected on the life that he had lived. These facial distortions can occur to either hallucinated perceptions or true (non-hallucinated) perceptions. Whilst reading, he hallucinated that he saw the Thunder God. He saves her, but is hallucinated. Further investigation by APO reveals that the hallucinated doctor actually exists. In the season finale, after it is exposed that House hallucinated his detoxification, Amber re-appears. She hallucinated monsters in the form of a man who was following her. Apparently, George has hallucinated Harry's presence throughout the night. She hallucinated Su-yeon as a result of not being able to accept her death.