It's an incredible film. Every scene has you gasping for breath, the tension is built so well! The brilliance lies in the fact that - you want to be believe for Maggie and root for her, at the same time, her behavior has you questioning her entire reality! Plus the control that David has had on her, despite her having another child and building a whole life together 2 decades later tells you EVERYYTHING about psychological abuse and torture! How amazing was Hall in this?! I would give this movie 4 stars! and definetly a special mention at Cannes