Kit is stuck in a loop. She keeps quitting her job managing her sister’s bakery to seek a more ambitious profession, but fear of failure always brings her back to Sweet Cheeks. She finds a fraught solace in cycling through fad diets, which her husband David, in his efforts to be supportive, follows along with her. Their latest program is the Radiant Regimen, an intense cleanse, and Kit is optimistic about embarking on a new chapter of healthy eating and self-control. Hungry in more ways than one, she soon falls into a flirtation with a carpenter named Matt, who is building new shelves for the bakery kitchen. Unable to resist their mutual attraction, Kit and Matt soon begin a passionate affair. Kit suppresses her guilt by obsessing over her diet, pushing herself to greater extremes.