A modest professor of philosophy plunges in spite of himself into the world of the underworld, when he goes to Paris, where he must attend a congress.A modest professor of philosophy plunges in spite of himself into the world of the underworld, when he goes to Paris, where he must attend a congress.A modest professor of philosophy plunges in spite of himself into the world of the underworld, when he goes to Paris, where he must attend a congress.