While on a trip to Thailand, a successful American businessman tries to radically change his life. Back in New York, his wife and daughter find their relationship with their live-in Filipino maid changing around them. At the same time, in the Philippines, the maid’s family struggles to deal with her absence.

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.