When a crossword puzzle editor (Tess Harper) is pulled into a police investigation, she finds her life more puzzling than she ever imagined. ‘Crossword Mysteries: Abracadaver’ premieres on Hallmark, Sunday, October 20 Plot Chabert, Elliot, and Niven, in a scene from Crossword Mysteries. After ‘A Puzzle to Die for’ and ‘Proposing Murder’, Abracadaver will be the third installment in the Crossword Mystery series. While we have seen quite a few shows and movies where civilians end up partnering with the police, this Hallmark original does have a fresh take on the convention, by roping in a newspaper editor to solve murders. Murder, mystery, and a little mayhem, are what ‘Crossword Mysteries’ promises you.