Middle-aged and about to be dumped from his construction job, Beckett is not feeling his best—especially since his wife, Princess, is already pressuring him to improve himself. She’s a fitness instructor who spends a lot of time and energy fine-tuning every inch of her body. Still, they both think their marriage is basically fine, until a couple of friends show up for a visit, their mutual affection and sexual chemistry loudly on display. In one weekend, they upset the tenuous balance between Beckett and Princess, throwing them into parallel midlife crises.

Princess thinks the problem is physical, and attempts to revive Beckett's interest with relentless surgical alterations and bodily enhancements that have the opposite effect on her husband. Beckett tries to woo Princess back to him by relaunching his contracting business, laying his manly accomplishments at her feet. Then, while Princess is away pursuing even more drastic beauty measures, Beckett meets Gluten, an energetic and erratic man devoted to living in the moment, whom Beckett feels drawn to in ways that surprise him. Beckett is changing, Princess is changing: what will happen to their already stressed marriage?