Overview
Overview
    Original Title
    An Invisible Sign
    Year
    2010
    Country
    United States
    Genre
    Comedy/Drama/Family/Romance
    Running Time
    1h 36m
    Summary
    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.