When a brilliant, control-obsessed researcher meets a former MMA champion with a voice that rattles her bones, her carefully ordered world spirals into a game of intellectual and primal seduction. He can see the chaos beneath her perfect logic, and he's determined to prove that the one variable she never accounted for is her own reckless desire. But surrendering to him means risking everything she's built—and she's not sure she wants to win this fight.