Golden boy Caplan and bookish Mina have been unlikely soulmates since third grade. Bound by growing up in single-mother households on the same cul-de-sac in Two Docks, Michigan, their friendship exists miraculously outside their high school’s social order. Mina is class valedictorian, expected by her late father’s parents to attend his Ivy alma mater; Caplan is laughing off prom-king predictions and the fear that he’s peaking too soon.

When Cap’s skateboard-toting, detention-dodging best friend confesses his feelings for Mina, she is whisked into a social life she never imagined, bumping shoulders with the likes of Caplan’s queen-bee girlfriend. Caplan is determined that things stay just as they’ve always been, while Mina faces the perils and privileges of opening her heart just in time to say goodbye.

As the sun sets on senior year, everything glows, and nothing looks the same in that last-change light.