When Ryli and Aunt Shirley discover their client, Parker Braxton, has been murdered, these private investigators are ready to jump into action with both feet. Well, at least Aunt Shirley is ready to jump into action--Ryli is busy rescuing Aunt Shirley's nemesis, a Chihuahua named Lucifer or Lucy for short. When the girls quickly discover a key piece of evidence regarding Parker's murder, they have no choice but to figure out who would have wanted Parker dead and why. Between dodging Willa and her desire to help, stumbling over the petting zoo Bevie seems to be amassing at the office, and drinking wine with a known mob boss, Ryli and Aunt Shirley are determined to find out who the killer is--that is, if the killer doesn't find them first. Join Ryli, Aunt Shirley, Bevie, and even Willa as they trace Parker's last week alive and fight to take down his killer.