Monks out on the open highway-but crime is a hitchhiker that wont be ignored With his job secure and his wifes murder finally solved Adrian Monk is feeling strangelysatisfied Hed like his agoraphobic brother Ambrose to feel the same way so Monk puts a secret ingredient in Ambroses birthday cake sleeping pills When Ambrose wakes up hes in a motorhome on the open road with Monk determined to show him the outside world But Ambrose isnt the only one struggling to let go As little crimes pop up along the highway Monk cant resist getting involved Now its up to Monk to stop a murderer from turning their road trip into a highway to hell
