After the murder in Boston of his police partner and lover, homicide Detective James Doyle (Eric Dane) follows a clue embedded in her dying words to the remote island of Nantucket to hunt for her killer in the lonely off-season. A murder mystery unfolds, one that draws the guilty and the innocent into its vortex. As Doyle hunts the killer and the killer hunts him, he discovers that things are not always what they seem to be on the GREY LADY.