Maggie Mae Wheeler is content with her life. At 30, she has grand plans for her vintage record shop in the charming Midwestern town where she grew up, and is soon to be engaged to her childhood best friend. But when she discovers a letter she wrote to herself at thirteen, being content doesn't feel like enough anymore - Maggie needs answers to figure out who she is and where she belongs. Since losing her parents, the only family she has ever known, Maggie decides that finding her birth mother is the best place to start. Her search leads her to Fire Island, an idyllic summer getaway where her birth mother is attending a wedding. As Maggie observes her biological family from a distance, she sees that they come with a lot of... drama. Torn between diving deeper into their world or returning to her peaceful life and cozy relationship, her decision gets more complicated when a handsome local offers to take her to the wedding - if she will pose as his date. Is it the magic of the island, the rush of the music, the fun of jumping into the weekend's events with her fake beau? Suddenly, playing the part of his girlfriend starts to feel way too real, and the words to every love song seem to be about them.