When the corpse of powerful American wine critic Gil Petty turned up in southwest France, local cops were perplexed: the body was dressed in the robes of a local fraternal organization and appeared to have been practically pickled in wine. Four years later, shortly after Enzo McLeod, who specializes in unsolvable murders, reopens the case, another wine-saturated corpse is found. Petty had made countless enemies in the wine world, and his ex-wife and daughter had few kind words to say about him, but what connects him to the second killing?