When Natalie suspects foul play in the deaths of her parents' wealthy neighbors, Monk goes undercover as a butler to investigate.

When a man Monk sent to prison years earlier is cleared by new DNA evidence, Monk helps him rebuild his life.

When Monk infiltrates a cult to solve a murder, he falls under the spell of its charismatic leader.

When Natalie unwittingly helps a thief steal the bicycle of a biotech CEO, she ropes Monk into solving a crime straight out of "Encyclopedia Brown" -- until Monk learns the hard way how dangerous this thief really is.

When Monk's insurance company refuses to pay for more individual therapy sessions, Monk joins Dr. Bell's therapy group, where somebody appears to be murdering his fellow patients.