Freddy Lupin, heir to a proud family line of werewolves, is in for a shock when on his 14th birthday his first 'warfing' goes awry, turning him into a ferocious poodle. The pack elders give Freddy until the next moonrise to prove he has the heart of a wolf, or risk being cast out forever. With the help of an unlikely ally in a streetwise stray named Batty, Freddy must prove he's 100% Wolf.

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.