Control. Denial. Surrender. Dylan and Zoe's marriage has always had an unconventional dynamic. She's naturally commanding, he's naturally submissive. But when Zoe presents Dylan with an unexpected anniversary gift—a chastity device—their relationship enters entirely new territory. What begins as a week-long experiment in orgasm control becomes something far more intense. As Dylan remains locked and denied, Zoe discovers the intoxicating power of complete sexual authority over her husband. But control over Dylan isn't enough to satisfy her needs. Enter Tyler, Zoe's personal trainer—confident, athletic, and everything Dylan isn't. When Zoe introduces the idea of bringing another man into their bedroom while Dylan remains locked and desperate, the psychological torment reaches new heights.