Monk has made progress in his therapy, so much so that his doctor is willing to recommend him for reinstatement back on the Police Force. Natalie finds someone who looks like Trudy, and follows her. She hears Trudy tell someone that she faked her death to go into hiding/witness protection, she needs some documents she left in the care of a friend. Natalie is afraid of what would happen if Monk finds out if his beloved wife is really alive, so she talks to the Captain about it. He tries to keep it from Monk, but a crime points to Trudy being present, when Monk finds out Trudy may be alive, he starts to unravel again. He must figure out if his wife is really alive and what she's after.
—Jesse Sanchez