Molly McGlynn’s Fitting In is both a coming-of-age drama and a teen sex comedy. 16-year-old Lindy (Maddie Ziegler) has just moved to a new city with her therapist mother, Rita (Emily Hampshire), but things are going well for her: she already has a best friend called Vivian (Djouliet Amara), a crush on schoolmate Adam (D’Pharaoh…