The titular lead character of Luce (Kelvin Harrison Jr.) is an ideal High School student. The adopted son of Amy (Naomi Watts) and Peter Edgar (Tim Roth) is in every extracurricular you can think of, he's a great speaker, he gets along equally well with his fellow students as he does with his teachers. Well, most of his teachers at least. Luce doesn't really get along well with his English teacher, Harriet Wilson (Octavia Spencer). Up to this point, Luce's just been mildly annoyed with his teacher. But things take a turn for the worse when Wilson calls Amy into her classroom to inform her that her son has written an extremely disturbing and violent essay and has also been keeping illegal fireworks in his locker.
