Soundtrack to a Coup d'Etat explores the collision of African politics and American jazz in the 1960s, revealing the hidden forces behind Patrice Lumumba's 1961 assassination. It focuses on the protest by Abbey Lincoln and Max Roach at the UN Security Council regarding that assassination. Through eyewitness accounts; declassified government memos; and testimonies from mercenaries, CIA operatives, and jazz legends, the film presents a historical narrative that interrogates colonial history and offers a reflection on the geopolitical echoes that reverberate today.