Desc: Circadian Rhythm: Directed by René Besson. With Rachel Miner, Robert Berson, Seymour Cassel, Sarah Wynter. Focuses on a young woman and her radical journey to discover who she is and to find out why multiple enemies want her dead. The woman, SARAH CAUL, is thrown into an action filled construct where she must put the pieces of her life together as well as confront the menace that follows her every move.