On July 23, 1843, a horrific crime took place in Canada that still gives psychologists and criminologists no peace. Maidservant Grace Marks was accused of the extremely brutal murder of her employer and his pregnant housekeeper-mistress. Grace was extraordinarily beautiful and very young — she was not yet 16. The case was complicated by the fact that she offered three different versions of the murder, while her accomplice offered only two. But he went to the gallows, while she was to spend her whole life in prison and a lunatic asylum — her lawyer managed to convince the jury that she was feeble-minded. Grace Marks was released 29 years later. But was she truly insane? Booker Prize winner Margaret Atwood offers her own version of the story of Canada’s most famous female criminal. But is she entitled to?