An Invisible Sign
![An Invisible Sign](https://image.tmdb.org/t/p/original/xMhcAI4empreYKCHj063km2p7kJ.jpg)
An Invisible Sign
5.2 An Invisible Sign
2010, 1 h 36 m
Family, Drama, Romance, Comedy
Count on the unexpected.
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.
Posters
![An Invisible Sign](https://image.tmdb.org/t/p/original/w5bSVpGnqL2XDG22ddubcD9ik5U.jpg)
Backdrops
![An Invisible Sign](https://image.tmdb.org/t/p/w1280/7So23dbXN5hMP68JqgbPJFk4NSy.jpg)