William Bullock is an elderly college professor of English Literature and Composition. In class he's impatient, controlling and unforgiving. When a female student complains he made a grotesque request of her, nobody seems to believe him. The cynical department chairman is titillated by the fact that this ancient stalwart model of fidelity and morality has revealed a too-human part of himself.
Susan switches identities with her new friend Nicole, so that Nicole can pay for her medical bills with Susan's insurance. Then Susan finds herself trapped in her new identity when Nicole ends up dead under questionable circumstances.