Drifter

Emily lives in a world besieged by a deadly plague that is salvation for some, and death for others.

As a member of the infected, her world is the quarantined town she now lives in with the others of her kind. But when a girl who looks exactly like Emily appears on the scene, identical down to the favorite worn Nirvana T-shirt she wears, lacking only the deadly disease. Emily is forced to rethink everything she has ever known to be true.