Mara Cortez, a dedicated medical student, reluctantly joins her old high school classmates on a beach trip, hoping for a break from her structured life. There, she meets Leo Sandoval, a flirtatious photographer with no plans to settle down. Despite their differences, the chemistry between them grows. Both on completely different paths, Mara must decide whether she's willing to let down her guard down for a love that might be as temporary as the summer sunset. But with Leo set on leaving, and her future still calling, will she let herself fall for someone who can't be tied down?