The life of private investigator Allison Carter is complicated enough just preventing the end of the world on a regular basis. But in the midst of her latest case she gets an unexpected call from her mostly-dead ex-boyfriend, who has a tip that may prove helpful or push the world further toward its destruction. Along the way, she encounters a closet troll with a stun-gun fetish, a theme park filled with demonic creatures in happy costumes, and unravels a secret that will change her life forever.