He is ostracized by the other kids and treated poorly by his foster mother , Shannon .
Sarah , who is a teacher , deals with her grief by obsessing over one of her students , Adam , who has Asperger 's .
Adam is ostracized by the other kids and treated poorly by Adam 's foster mother , Shannon .
Sarah , who is a teacher , deals with her grief by obsessing over one of her students , Adam , who has Asperger 's .