This intense thriller follows Emma (Lily Rabe), a woman who is put in a witness protection program after her boyfriend, Kit Parker, turned out to be a serial killer. Emma is given a new identity and relocated to a new city to start over.
Mary (Amy Brenneman) is a grieving mother whose daughter went missing seven years ago. Mary believes that Kit Parker was behind her daughter's abduction, and that Emma might have been involved. She enlists John (Hamish Linklater), a criminal on parole, to find Emma and get answers about her missing daughter.