Hadjis, a philosophy professor in his thirties, put his spiritual concepts into practice when he left Europe to settle in a working-class district of Tunis, where he lived in destitution. Together with two followers of his philosophy, a medical student and a poet, they form a close-knit, wise cenacle. Unfortunately, Hadjis strangles a prostitute while on a hashish binge. The police put an officer in charge of the investigation, and he soon tracked down the murderer. But, converted by the three f...