Mr. Monk on the Couch is the twelfth novel written by Lee Goldberg to be based on the television series Monk. It was published on June 7, 2011. Like the other Monk novels, the story is narrated by Natalie Teeger, Monk's assistant.
Adrian Monk has to solve the murders of three people: a struggling student, a security guard, and a beautiful woman. The only common element between these three people is a couch. Meanwhile, Natalie Teeger solves a case on her own with the help of Monk's agoraphobic brother Ambrose.