Leaving her marriage and her unfulfilling job, Mallory Martin moves back to her hometown of Hillspring, Arkansas, and starts a horse rescue. But when her cantankerous neighbor and longtime critic, Albert Cunningham, is found murdered in his barn, and Mallory becomes suspect number one. Since Sheriff Grady Sullivan is focusing only on Mallory, she embarks on her first outing as a sleuth—aided by her best friend, Lanie, and rescue volunteer Tanner—racing headlong into the investigation in search of the real killer.