A billionaire that Lassiter investigated for murder avoids a jail sentence by means of an insanity defense. After he is sent to a mental hospital, Shawn and Gus go undercover as a patient and orderly to prove that the man is sane, but Shawn asks the question that Lassiter didn't even consider - what if the man is actually crazy?

Shawn and Gus are at the SBPD waiting to pick up their check when they spot an attractive, ethereal woman named Nicole, telling the police that she witnessed a murder in an ally on a busy street at the height of lunch hour. Given the circumstances, Lassiter and Juliet are unsure whether or not she is telling the truth. Her story sounds unbelievable even to Shawn, but Gus is really attracted to Nicole and wants to further investigate.