Original Air Date: March 30, 2006 Written by: Eric Kripke (series creator) Directed by: Kim Manners Main Cast: Jared Padalecki (Sam), Jensen Ackles (Dean) Plot Summary Sam and Dean track a series of bizarre deaths in Chicago, where victims are killed by their own shadows. They discover the killer is a Daeva — a shadow demon — controlled by a human master. The hunt becomes personal when they reunite with a familiar face: Meg Masters , a mysterious woman who knows Sam’s name, his father’s whereabouts, and seems one step ahead.