No one likes to come home to a mess--least of all Monk and Natalie. But when they return briefly to San Francisco from an extended stay working as cops in New Jersey, Natalie discovers somebody has been sleeping in her bed. But this Goldilocks is not asleep. She's dead.
If that's not bad enough, investigators find marked money from a Federal sting operation stuffed under Natalie's mattress. Now her life is a real mess and she needs Monk's help to clean it up.