On the morning of 23 December 1996, Sophie Toscan du Plantier was found murdered in a lane near Schull, West Cork. She was 39 years old and a regular visitor to Ireland from Paris, where she lived with her husband, a celebrated film-maker, and 13-year-old son, Pierre Louis Baudey-Vignaud. Her death transfixed the media in both Ireland and Paris, partly because it was just so jarring. The murder rate in Ireland was so low that there was only one state pathologist, and it took him 28 hours to reach the scene.
It was close to Christmas. Sarah Lambert, the producer of Netflix’s new documentary, Sophie: A Murder in West Cork, struggles to underline how big a deal this was. “More so in Ireland than a lot of other countries, Christmas is such a family time. I know a lot of married couples that will separate and go back to their parents. People were flabbergasted that she, a mother, would be there by herself so late in December.” The location was so remote, the community so…