Storyteller Nicolas Bonneau and singer Sylvain GirO join forces to recount the Troadec case, a family murder that occurred in Nantes and made headlines in 2017. The case, which unfolds across Brittany, involves jealousy, fantasy, family history, love, paranoia, inheritance, and money. The audience, now witnesses, gradually pieces together the fragments of this tragic story, revealing its human, political, and cathartic dimensions, particularly through the perspective of the victims. To achieve this, they have chosen to explore the form of the crime lament, as it was told and sung in Brittany and France at the end of the 19th century.