Apostasy

A faithful Jehovah's Witness is forced to shun her own sister because of a religious transgression. As the separation draws out, she starts to question the meaning of God's love.

Apostasy is a 2018 drama movie directed by Daniel Kokotajlo, starring Siobhan Finneran, Sacha Parkinson, Poppy Jhakra. It holds an IMDb rating of 6.9/10 from 2,768 votes and runs 1h 35m.