Hollis Brannigan, newly arrived in Los Angeles, left Kansas for the bright lights of Tinseltown—but working as a personal shopper for a prestigious concierge service isn't a job she ever wanted. Life only gets worse when she's assigned to D-list clients: fading Hollywood stars, aging industry insiders, new clients with no name value, and most any nut case who stumbles into the office with money to pay their outrageous fee.

But Hollis doesn't intend to spend her days making other people's dreams come true. She's focused on getting a position in the investigations department. She gets a chance to prove herself by posing as an investigator for a missing dog case—but when she arrives at a stately Hancock Park mansion, she learns there's no missing dog. Instead, she's shown a secret room, a handgun, a vintage Louis Vuitton suitcase stuffed with cash, and is told she has to find a killer.

Now shopping for a murderer among LA's exclusive shops and luxury boutiques, Hollis discovers scandals, lies, broken dreams, and enough old secrets to fill a Black Friday shopping bag. But suspects and evidence are as rare as a Rodeo Drive discount outlet, and a cunning killer may be much closer than she thinks. Somehow, she must find the murderer before her shopping days—and maybe her life—are over!