Inheriting a dog walking business with a high-end clientele in San Francisco isn't the worst thing that could happen to Lemon Lister. But when one of her canine clients finds a disembodied foot outside the art museum, she reconsiders her luck.

Things get even dicier when Lemon drops off one of her pups only to discover the pet parent is missing. Along with her best friend and a super-hot CSI, Lemon and her maverick mutts must solve the crime before she loses any more paying customers, or before she herself becomes the focus of the fiendish felon.