There’s a serial killer on the loose. And Lexy Baker’s grandmother, Nans, could be the next victim. The bodies are piling up at the Brook Ridge Falls Retirement Center. Healthy people are dropping like flies. And yet no one believes a murderer is on the loose… except for Lexy Baker and the troupe of iPad-toting grandmothers who live at the center. When Lexy’s detective boyfriend, Jack, refuses to believe that foul play is involved, Lexy has no choice but to find the killer on her own. Along with Nans and her gang of iPad-toting, mystery-solving grandmas, they use everything from hypnosis to high-tech gadgets to track down the killer.