"Adrian Monk is feeling strangely...satisfied. His job is secure, and his wife's murder has finally been solved. He'd like his agoraphobic brother, Ambrose, to be able to feel the same way--and sees his brother's birthday as a chance to make it happen. So Monk puts a secret ingredient in Ambrose's birthday cake: sleeping pills. When he wakes up, they're in a motor home on the open road. Monk is determined to show his brother the outside world. But as little crimes pop up along the highway, Monk can't resist getting involved.".