IMDB: 5.4 October 7, 2010 96 min Drama Romance Comedy Family USA Marilyn Agrelo Chris Messina John Shea Jessica Alba Sônia Braga
An Invisible Sign: 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.
