Because he wants to keep a promise made to his friend, the physician Antoine Barasse, murdered in Port Djema, former territory of the French Empire in East Africa, Pierre Feldman, surgeon, shares in the footsteps of the disappeared. Antoine had chosen the camp of rebellion, supporting Assad nomads fighting against the power in place. Despite the warnings, Peter goes to Antoine's dispensary. He discovers a bruised and violent Africa and especially the reverse of a humanitarian commitment.