Marnie is an English novel first published in 1961 which was written by Winston Graham. It is about a young woman who makes a living by embezzling from her employers, moving on, and changing her identity. She is finally caught in the act by one of her employers, a young widower named Mark Rutland, who blackmails her into marriage. Two shocking events near the end of the story send the troubled woman to the brink of suicide and she eventually must face the trauma from her past which is the root cause of her behavior.