In a last-ditch effort to salvage her mental health, Maddy LeDoux flies to Scotland, crossing paths with Micah Macgregor in a stroke of serendipity she'd given up hoping for after her ex-fiance left her with a ramshackle house full of wedding decorations. Two weeks of dancing and hillwalking heal her heart, and when she returns home to North Dakota, Maddy makes a pact with herself: live like she did overseas for 90 days. At that point, if she doesn't get relief from her diagnosis of treatment-resistant depression, she'll move to either the Highlands or Heaven, if her un-angelic language doesn't land her somewhere warmer.
Layers of her underlying religious trauma surface, though, along with new dents in her car after she collides with a handsome police officer. As her budding confidence, bold wardrobe changes, and new addiction to baking sticky toffee pudding brings her family's controlling behavior to light, Maddy grapples with whether being her unfiltered self will keep Micah close or push him away. When an uncomfortable truth surfaces, testing her resolve to ride out the clock on her pact, Maddy is forced to answer the toughest question of all: when all you can control is yourself, how do you get what makes you happy?