When professors discover that an aimless janitor is also a math genius, a therapist helps the young man confront the demons that are holding him back.

Charlie Simms is a student at a private preparatory school who comes from a poor family. To earn the money for his flight home to Gresham, Oregon for Christmas, Charlie takes a job over Thanksgiving looking after retired U.S. Army officer Lieutenant Colonel Frank Slade, a cantankerous middle-aged man who lives with his niece and her family.

When David Greene receives a football scholarship to a prestigious prep school in the 1950s, he feels pressure to hide the fact that he is Jewish from his classmates and teachers, fearing that they may be anti-Semitic. He quickly becomes the big man on campus thanks to his football skills, but when his Jewish background is discovered, his worst fears are realized and his friends turn on him with violent threats and public ridicule.