'An Invisible Sign': Math Problems
"An Invisible Sign begins as 10-year-old Mona Gray (Bailee Madison) watches her father (John Shea) experience a mental breakdown. From that moment on, he suffers from a pervasive by undiagnosed mental illness. Unable to understand it, she relies on two divergent coping mechanisms. Even as she retreats into the logical, highly controlled world of numbers and mathematics, she also gives herself over to extreme magical thinking. The combination makes the film into something of a math problem itself, as it shows how the father’s illness exponentially affects his daughter."
Read the rest of the review at PopMatters.