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.
An Invisible Sign is a movie first shown in 2010. Runtime is 96 minutes. Status: Released. Genres: Family, Drama, Romance, Comedy. TMDB score 5.2/10 from 119 votes.














































