Two years after her adoptive mother dies during a family vacation in the Dominican Republic, 12-year-old Ella lives alone with her adoptive father Nolan. The two have formed a close father-daughter bond since her adoption at age 9 when her biological mother (Nolan's cousin) was sentenced to a psychiatric institution. In Ella's eyes, her father is perfect. She is willing to do whatever it takes to sabotage those who don't feel the same. Things grow complicated when Nolan begins to date a woman named Cecily who has a 14-year-old son, Zander.