This TV show follows Emily Byrne. A simple, at first sight, girl is the FBI agent. The girl ends up at the center of the serious case. She is to find one of the most dangerous serial killer of the present. It is very hard to track the criminal in Boston. There is a criminal life in the city and it is not possible to find out who everyone is. But the investigation is really untypical for the city and for the FBI. The main heroine literally disappears. Nobody has seen her, nobody has heard anything about her. Emily finds herself in an old house six years later. It is clearly abandoned.