Monk is an American comedy-drama detective television series that originally ran on the USA Network from July 12, 2002, to December 4, 2009, with 125 episodes broadcast over eight seasons. The series follows Adrian Monk, a private detective with obsessive–compulsive disorder and multiple phobias, and his assistants Sharona Fleming and Natalie Teeger. Monk works with the San Francisco Police Department in solving unconventional cases while investigating his wife's unsolved murder. The show also explores the personal lives and struggles of the main characters.

Adrian Monk, portrayed by Tony Shalhoub, is the title character and protagonist of the USA Network television series Monk. He is a renowned former homicide detective for the San Francisco Police Department. Monk has obsessive-compulsive disorder (OCD) and multiple phobias, all of which intensified after the murder of his wife Trudy, resulting in his suspension from the department. He works as a private police homicide consultant and undergoes therapy with the ultimate goal of overcoming his grief, taking control of his phobias and disorder, and being reinstated as a police detective.