Getting to the root of the problem is like pulling teeth....
Frank (Steve Martin) is living the American Dream. Blessed with a thriving dental practice and luxury home, and happily engaged to beautiful assistant, Jean (Laura Dern). But his perfect life quickly unravels when Susan Ivey (Helena Bonham Carter), a seductive new patient with an appetite for painkillers settles into his dentist chair. Before long Frank is wanted by the police, plunging him into a shadowy world of drugs, sex and violence....