This is a slow but well-made movie about a Jehovah’s Witness family, directed by a former member of the organization.
The family is made of Alex, her mother, and her older sister. Alex follows her mother and her religious teachings with the utmost loyalty, especially as she refuses a blood transfusion that is crucial to her health. Her older sister starts showing signs of independence by lying to her friends about her family’s faith and dating a Muslim man.
Apostasy is about family bonds versus belief bonds. It’s not a movie that judges or preaches, rather it simply portrays the complex situations that structured religion creates.