Tehran Revisited

Tehran Revisited is the fictional memoir of author John Sager, who served as part of the CIA's Tehran station in the 1950s. He sometimes dreams of returning for a brief visit, knowing it's unrealistic. Instead, this is his story.
The tale is contemporary, as the American president--frustrated by his unavailing tweets--has directed the Central Intelligence Agency to bring about regime change in Iran. The critical caveat is to have no American fingerprints.
Using a most unlikely array of agents and helpers, the agency succeeds in its mission, but not without the help of Roya, a beautiful young woman who has the last word.