When Kirby Swallow assumes her half sister's identity to help figure out who's threatening her, she finds herself in way over her head. On the remote Texas ranch her sister calls home, she confronts a growing list of suspects and a rising body count—all while wearing her sister's 4-inch heels. The only problem is the sexy ranch manager, Seth Maguire, is starting to catch on to the charade. The attraction between them is undeniable—and soon, what starts out as just a one-night stand, turns into something much deeper. But someone on the ranch is out for blood...and Kirby's next.