Substitute, The

A demure high-school English teacher finds her husband conducting an affair with a young student. After the adulterous pair mysteriously end up dead in a fire, she disappears. A year later, the student body of Baker Springs high-school can't stop talking about the sexy new substitute teacher who seems to have a lot more on her agenda than teaching English Lit. But when it's time for the real teacher to return to class, the substitute's deadly intentions soon become known.