La grosse commission

Gwen Boidelot arrives in a town where everyone is obsessed with plumbing, food and excrement. He finds something impossible left by the previous occupant in the toilet of his hotel room, the mysterious Mr Brundieu. Who is Mr Brundieu? Why do people react so strongly to him? Boidelot, led on by his curiosity meets a series of people and finds himself in situations that ultimately put his life in danger.