One month after the previous investigation, la BC is called to the scene of the suicide of Stéphanie Pleskof, 53, who hanged herself in her living room, and the murder of Léa, 20, her daugther, who had been missing since 2014. Apparently, Nicole Marceau was the judge investigating her disappearance. The team investigates while Jess and Hyppo are happy expecting, Emma is ready to leave for her new job and Aurélie, his sister-in-law, is still living at Rocher's, making him and Adèle distance.