Mona Gray is a 20-year-old loner who, as a child, turned to math for salvation after her father became ill. As an adult, Mona now teaches the subject and must help her students through their own crises. Jessica Alba, Bailee Madison, J.K. Simmons, Chris Messina, Sônia Braga, John Shea, Sophie Nyweide Added on Amazon Prime 2020-09-17. Youtube Trailer