A 19-year-old searches for her twin brother after he runs away from home, following a fight with their father.

Charlie, a 17-year-old girl tortured by doubt, is thrilled when she becomes friends with Sarah, but when Sarah tires of Charlie and looks for a new friend, their relationship takes an ominous turn.

A mild-mannered college professor discovers a look-alike actor and delves into the other man's private affairs.