A former San Francisco police detective suffering from an extreme case of obsessive-compulsive disorder is called in to investigate an apparent assassination attempt of a mayoral candidate in which one of his bodyguards is killed.

A judge is murdered while placing a 911 call, but before she dies she names her attacker - notorious criminal Dale Biederbeck. The problem is, "Dale the Whale" is over 800 pounds and hasn't left his bed in years.

Monk is committed to an asylum, where he becomes convinced the chief psychiatrist committed a murder several years prior.

When billionaire software magnate Sidney Teal is shot dead by ex-cop Archie Modine after allegedly turning mugger and another policeman mysteriously flees the scene, Stottlemeyer calls in Monk to investigate. Not only is the idea of a billionaire turning mugger hard to swallow, the circumstances of the mugging are suspicious. Why, for example, would a mugger wear knee and elbow pads? Meanwhile, Sharona threatens to quit (this time for sure) when her paycheck bounces, and Stottlemeyer is hounded by reporters demanding information on "Fraidy Cop." Unable to continue the investigation without Sharona's help, Monk returns to the seemingly unsolvable mystery of his wife's murder only to find that his "new" clue isn't new; he's already talked to writer Kelly Street three times. Sharona finds that selling lamps isn't nearly as much fun as working for Monk (with or without money) and comes to the rescue with a new clue involving Teal and Modine.

A very tidy woman who resembles Trudy turns Monk's head while he's investigating a triple homicide. The only problem is, she's the prime suspect.

Renowned philanthropist Henry Rutherford is killed when a moderate earthquake rocks the city and sends a display case falling on top of him. But when Monk examines the scene, he finds clues that suggest foul play.

When a powerful CEO and his wife are shot to death in a deserted parking lot, the police investigate the husband's enemies. But Monk thinks it's all about the wife and the affair she was having with a handsome young ballplayer.

When a ringmaster is murdered by an acrobat in a crowded restaurant, Monk suspects his ex wife is responsible. But with her foot broken and in a cast, how could she have done it?

A series of mail bombs target three wealthy siblings, but Monk thinks one of the brothers is actually responsible. The problem is, he's been in a coma for the last four months.

Monk tries to link the victims of a serial killer before he strikes again.

Monk's paperboy is killed on his doorstep, and the killer takes Monk's paper. So, what's in the paper that the killer doesn't want Monk to see?

A T.V. star charms Monk's entire team with the VIP treatment. But Monk is convinced he murdered his wife.

A sniper causes a car accident that nearly kills Stottlemeyer's wife, Karen. Now it's up to Monk to solve the case and keep Stottlemeyer from doing something he might regret.

Monk is called to a crime scene where a pet seems to be the killer: Ian Blackburn is found in his the panic room, shot four times and his pet chimp holding the weapon. Did the chimp do it?

A blackout puts half of San Francisco in the dark for a few minutes. When the police discover it wasn't an accident, Monk gets involved to try and figure out why.

Karen Stottlemeyer films a documentary of Captain Stottlemeyer's division. Despite the Commissioner's objections, Monk helps solve the case of a headless corpse, a fatal fire at a wig factory, and a hat thief all in one fell swoop.

Sharona takes a break from Monk so that she can concentrate on her creative writing class, but gets caught up in a twisted murder plot that causes her to question her sanity. Meanwhile, Monk is distracted by Sharona's replacement, who is determined to fix him.

Monk goes undercover at a department store to investigate the mysterious death of a popular store employee. In the process he also gains valuable insights into the life of his former partner, who happens to be the store's head of security.

A woman commits suicide and minutes later Captain Stottlemeyer is shot nearby. Monk needs to determine if the two events are related, but his new medication has turned him into an obnoxious jerk who can't concentrate on the case.

Monk is having a hard time finding a new assistant, and Natalie might be just what he is looking for. But first he has to take her case and solve the mystery of the intruder who seems inordinately interested in her daughter's pet fish.

Natalie's campaign to be elected to the school board is interrupted by a sniper. Monk's life is endangered as well when he begins to investigate.

A severed finger turns up in the park, and Monk's only source of information is the two-year-old boy who found the finger.

Monk has stiff competition solving the case of a murdered jewelry store owner from a second-rate PI with a loser reputation who suddenly displays skills even more amazing than Monk's.

For the first time in years, Monk has made progress in therapy. But when Natalie discovers that Trudy may be alive, she risks unraveling her boss completely.

After a vicious truck stop attack, Monk awakens with amnesia in a desert hamlet, married to a domineering loon, and suspicious of the circumstances surrounding the hasty departure of a waitress.

Adrian is one of four detectives on the hunt for a priceless diamond that promises a handsome reward for its finder.

Despite everyone's disbelief that a hero making the news is actually a coldblooded killer, Adrian tries to prove that a celebrity astronaut is responsible, despite an airtight alibi.

A method actor gets in the way as Monk tries to solve a case.

A city-wide garbage strike throws Monk completely off his game as he tries to solve the murder of a union boss.

Monk is blinded by a murderer at a fire station, and then must help find him using his other senses.

Dr. Kroger questions his abilities after a patient becomes the prime suspect in a murder. He decides to retire but a distressed Monk is convinced someone else is responsible.

When Monk suddenly acquires a new friend who rarely leaves his side, everyone is suspicious but him.

Upset when a hiring freeze at the police department is announced, Monk is pressured by Natalie to investigate the deaths of her parents' neighbors, but when Monk starts considering his undercover role as a viable alternate career something has to be done.

A street musician is murdered six different ways and the killer is threatening to strike again, but Monk and his colleagues are forced to the sidelines by obnoxious FBI agents.

Monk is asked to consult on the murder of a woman, but his issues with nudity hamper his skills.

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 Fly before someone dies.

A convicted murderer put away by Monk is exonerated. Monk must figure out what really happened to keep his remaining shred of confidence.

Monk obsesses about a woman he bumped into on the street, and the resulting insomnia causes him to witness a crime that apparently didn't occur.

Monk's less than holiday mood is only worsened when he's accused of shooting Santa and becomes the most hated man in the city.

A good Samaritan witnesses a cult style murder but the evidence doesn't add up. Mr. Monk goes undercover with the "Siblings of the Sun" to solve the crime.

Natalie is frantic, to the detriment of Stottlemeyer's new car, when it appears a mad man is targeting his victims based solely on their name - Julie Teeger.

During an investigation of murders at a junk yard, Monk takes up painting and finds a patron.

Heartbroken by the sudden death of Dr. Kroger, Monk rushes into homeownership and gets a little more than he bargained for when he hires a very persistent contractor.

A videotaped clue from Trudy provides Monk with the clues he needs to solve her murder - but he has very little time to catch her killer while finding out what poisoned him.

Heartbroken by the sudden death of Dr. Kroger, Monk rushes into homeownership and gets a little more than he bargained for when he hires a very persistent contractor.

Dr. Kroger questions his abilities after a patient becomes the prime suspect in a murder. He decides to retire but a distressed Monk is convinced someone else is responsible.

A good Samaritan witnesses a cult style murder but the evidence doesn't add up. Mr. Monk goes undercover with the "Siblings of the Sun" to solve the crime.

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 goes undercover at a department store to investigate the mysterious death of a popular store employee. In the process he also gains valuable insights into the life of his former partner, who happens to be the store's head of security.

Adrian is one of four detectives on the hunt for a priceless diamond that promises a handsome reward for its finder.

Monk is blinded by a murderer at a fire station, and then must help find him using his other senses.

Sharona takes a break from Monk so that she can concentrate on her creative writing class, but gets caught up in a twisted murder plot that causes her to question her sanity. Meanwhile, Monk is distracted by Sharona's replacement, who is determined to fix him.

A street musician is murdered six different ways and the killer is threatening to strike again, but Monk and his colleagues are forced to the sidelines by obnoxious FBI agents.

After a vicious truck stop attack, Monk awakens with amnesia in a desert hamlet, married to a domineering loon, and suspicious of the circumstances surrounding the hasty departure of a waitress.