The Greatest Hits

“Find the right song, change your past. Find the right person, change your future.”

Certain songs send Harriet Gibbons (Lucy Boynton) back in time, and she cannot say why. She goes where the music takes her, to the days with her late boyfriend, Max (David Corenswet). Ned Benson sets her return trips against a new romance with David (Justin H. Min), who has to compete with a man the past keeps alive, and with the question of whether she would change any of it.