In the early 1990s, Senegalese Captain Mbaye Diagne is transferred from his homeland to Kigali, Rwanda, in the midst of its raging ethnic civil war. Deployed as an unarmed UN observer, he is a member of the UNAMIR peacekeeping force tasked with implementing a power-sharing agreement between the Hutu government and the rebel Tutsi-led Rwandan Patriotic Front. Mbaye tries to warn...