When a friend's college-age son dies mysteriously in Mexico, the mayor sends Monk to investigate. Doubting the coroner's report that the young man ""drowned"" in mid-air, Monk nevertheless has difficulty concentrating on the case. His eighteen suitcases carrying not only his clothes and ""back-up pillowcases"" but a year's supply of food and his favorite brand of bottled water are stolen, leaving him with nothing he considers safe to eat or drink. Even worse, someone is trying to kill him, first by running him down with a pick-up truck and then by planting an explosive device behind a picture that he compulsively straightens every time he enters his room. Neither the witnesses nor the police, a south-of-the-border caricature of Stottlemeyer and Disher, offer any helpful leads--except for the mention of another unsolved murder, this one a mauling by a ""wild lion,"" the previous year. The fact that both victims were from San Francisco offers Monk the clue that he needs to solve the case and e

When five members of the West Coast Mafia are shot down in a barbershop, Monk is pressured by mob godfather Salvatore Lucarelli and his nephew ""Fat Tony"" to solve the case. But the FBI in the person of Agent Colmes is pressuring him, too. Despite Captain Stottlemeyer's insistence that Colmes is not to be trusted, Monk accepts his offer of reinstatement on the police force if he can bring down the whole gang. The only clues are a partially completed crossword puzzle and a gumball machine that was apparently used to break a back window so the killer could escape. With a Mafia bodyguard named Vince as their ""babysitter,"" Monk and Sharona interview the sole witness, Phil Bedard, a young U.S. mint employee who tells them that he saw three men running from the scene, one of them wearing a jacket with a strange-looking number 15 on the back. Bedard also explains the heightened security at the mint: someone has stolen five double-headed pennies. Associating the numbers on the jackets with a Ch

When Monk goes to his firehouse to get his smoke detectors inspected, the crew is quickly called away to a fatal house fire in which a young woman is killed. Minutes later, a mysterious intruder walks into the firehouse, lethally bludgeons a veteran fireman, blinds Monk with cleaning acid, then escapes. Despite Monk losing his eyesight, Stottlemeyer coaxes him to continue investigating, and Monk soon finds that the fire and his attack are connected.