This documentary follows the traces of the French colonization of the country Lobi. In this region of southwestern Burkina Faso, there is not a village, not a family that does not remember the suffering brought by the colonizers. Confronted with the archival documents of the administrators, the oral tradition, through its numerous testimonies, allows us to trace back nearly a century of history, from the arrival of the first Whites until today. This word also testifies to the individual, social or religious consequences of this often painful history. Between the past and the present, between the living words and the writings of the colonists, "Mémoire entre deux rives" is as much a quest for Lobi identity as a reflection on "civilising" France.