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With help from Monk's agoraphobic brother, his loyal assistant Natalie tackles her own investigation while Adrian Monk tracks a second-hand couch that seems tied to a series of murders. Following a bloody trail, Natalie and Monk soon end up face-to-face with the most ruthless killer they've ever encountered.

Lee Goldberg has written episodes for the Monk television series, as well as many other programs. He is a two-time Edgar Award nominee and the author of the acclaimed Diagnosis Murder novels, based on the TV series for which he was a writer and executive producer.