Mr. Monk is Miserable
Lee Goldberg
 Natalie wants a break so she blackmails Monk in going to Paris, France. While in Paris, Monk surprises Natalie by telling her he wants to check out the sewers because the underground maze of tunnels and pipes is famous for keeping Paris sanitary. While traveling the mazes of the sewers, the two stumble upon the catacombs, which are filled with aging skulls and bones. When Monk spots a skull that is not so old that shows evidence of murder, the pair's vacation plans are once again put aside so Monk can conduct a murder investigation.