"Jazz" covers the Ellington orchestra's tour of Iraq during a 1963 CIA-led coup that would eventually pave the way for Saddam Hussein's rise to power.
Part of the intrigue is the discovery, years later, that the CIA exploited the global zeal for Ellington's jazz by planting spies in the entourage as the orchestra toured hostile parts of the world. When and if Ellington knew of the program will be part of the drama.