A South Boston whiz kid elects to clean the halls of learning rather than enter them, slumming his way through life as a janitor at MIT. But his natural ability to unravel complex equations attracts the attention of a professor who won`t let him quit, a beautiful Harvard student who wants to save him, a sympathetic buddy who wants him to escape South Boston, and a counselor who encourages him. A soundly acclaimed, homegrown effort from lifelong Boston buddies Damon and Affleck, who pushed their script through development by disguising it as a suspense thriller.