Rent Le Professionnel (1981)

Secret agent Joss Beaumont (Jean-Paul Belmondo) is sent to Malawi to assassinate President N'Jala (Sidiki Bakaba). At the last moment, the French authorities make a change of policy and betray Beaumont to the Malawi government. After two years in captivity, Beaumont escapes from the African state and returns to Paris to enact his revenge. He notifies his former paymasters that he intends to carry out his mission, by killing N'Jala during a state visit to France. The ruthless Commissioner Rosen (Robert Hossein) is assigned to prevent him at all costs...