2 years after the USA resumed diplomatic relations with Cuba, American intelligence officers on the island began experiencing strange and debilitating neurological symptoms. Before long, the phenomenon began affecting US officials around the world. Veteran CIA officer Marc Polymeropoulos was first afflicted during a trip to Russia in 2017 - and he's been fighting ever since. Vanessa Kirby joins Marc, Russia expert John Sipher and Dr. James Giordano to analyse the personal, political and medical possibilities behind the mysterious Havana Syndrome. From SPYSCAPE, the home of secrets. A Cup And Nuzzle production. . Series producers: Gemma Newby, Joe Foley. Produced by James Trew. Music by Nick Ryan.