Summer in Provence. A triple murder. Commissaire Albin Leclerc investigates his second case. Three bodies are found at a forest parking lot near Caromb. The holiday guests were executed with a rare weapon. The police are faced with a puzzling case, which is further complicated by the involvement of former Commissaire Albin Leclerc. Was it the work of a hitman? Is there a killer in Provence targeting tourists? Leclerc sees parallels to an earlier case and, accompanied by his pug Tyson, stirs up a hornet's nest.