At 69 years old, Claire Reynolds is changing things up. She’s volunteering. She's learning to rollerblade. She’s rescued a shelter dog. And today, she’s killed a man. It wasn’t on her to-do list, but stuff happens. Besides, the man in question was strangling her good friend, Daphne, so what’s a gal to do? Scream, possibly. Call the cops. Or --- at retired officer Daphne’s insistence --- call in the rest of their senior gal pals, roll up the body in a blanket, and toss it off a cliff. The dead man is a member of the local crime family, and if the police get involved, it’s not just Daphne at risk, it’s all of them. But the body is just the start. Soon the Alphabet Girls --- Atsuko, Barbara, Claire and Daphne --- must transform into the Alphabet Sleuths if they’re to keep their liberty...and their lives.