The third case of Dupin Commissioner. The vast salt garden on the Guérande Peninsula is just tolerated. The air is saturated with Fleur de Sel's violet fragrance, which the locals claim to occasionally cause hallucinations. The Commissioner Dupin has a similar feeling when someone starts to shoot unexpectedly. At the same time, he wanted to see a few mysterious barrels in Salines, which was warned by Lila Breval, a well -known journalist. And then disappears without a trace and lilac…