When a realtor is shot and killed while showing off a house to a couple, Monk and Natalie suspect the killer to be the victim's partner - who happens to be Stottlemeyer's girlfriend Linda Fusco.
Monk is on the trail of a man who seems to have committed the perfect crime when he murdered his wife and an intruder, and Natalie worries that Julie's new relationship is progressing too fast.
Mark's hypochondriac brother, Stacy (Jerry Van Dyke), shows up in the E.R. claiming he's sick. Shortly after he's admitted, Stacy's hospital roommate is murdered and suspicion falls on him.
Madison is charged with illegally selling narcotics when it's discovered her prescription pads have been sold. Meanwhile, a medical student murders his pregnant girlfriend to marry the daughter of one of Mark's wealthy friends.
Monk, in competition with one of Dr. Kroger's other patients, gets conned into helping his son find buried treasure. The problem is, it has ties to a recent bank robbery.
Monk's arch-nemesis, Harold Krenshaw, catapults to fame after he falls from a tower and survives. Now Monk must figure out if he's the real Frisco Flyer before someone dies.
Ellen Branford, a high-powered attorney, finds love, purpose, and the promise of a simpler life when she sets off on a journey to fulfill her grandmother's dying wish, to find the boy she once loved and give him her last letter.
The McBride sisters reunite in Alaska for a memorable birthday celebration connecting their past to the present. Starring Lyndsy Fonseca, Kimberley Sustad, Erica Durance and Barbara Niven.