Chris Messina, Jessica Alba, Sônia Braga, John Shea, Pamela Falk, Michael Ellis, Marilyn Agrelo, Aimee Bender

An Invisible Sign is a movie starring Jessica Alba, Chris Messina, and Sônia Braga. 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...