Flying-phobic ER nurse Calliope Ekblad is still gripping the armrest from her first-ever take-off when the pilot announces an in-flight medical emergency. Calliope leaps into action and saves a life, but ends up getting stuck in the airport hours away from the marathon she's running in honor of her brother. Luckily for her, Madison Beer, the stunning type-A copilot, offers to give her a ride. After the two spend a magical day together, Madison surprises Calliope by asking her to be her fake girlfriend. A video of Calliope saving a life has gone viral and started generating big sales for Madison's airline. Madison sees their union as the perfect opportunity to get to the boys' club executives at her company who keep overlooking her for a long-deserved promotion. Realizing this arrangement could help her too, Calliope dives into memorizing Madison's comically comprehensive three-ring-binder guide to fake dating. As the two grow closer, what's supposed to be a ruse feels more and more real.

Liola Stone didn't know who she was anymore. After her mother tried to kill her and she spent nearly two years in a hospital, she lost herself. Her memory of her life from before the "incident" was locked away. Her crush on Madison Beer was frustrating. That woman would never feel the same way for her. However, she couldn't control it - or stop it, no matter how hard she tried. She was beautiful, attentive, funny, and had the biggest heart Liola had ever seen. Liola would always love Madison.