In post-Wall Berlin, their allegiances rendered obsolete overnight, Stasi colonel Emil Grimm and CIA agent Claire Saylor find themselves entangled in a dangerous dance of espionage. The body of Emil's fellow Stasi officer, Lothar, discovered with a gunshot to the head, suggests murder. Emil, embroiled in a covert mission now tainted by blood, must navigate a terrain where former comrades become potential foes. Claire's supposed routine mop-up operation against East German intelligence spirals into chaos as her initial contact goes tragically awry. United by treacherous circumstances, Emil and Claire plunge into a relentless quest for truth that places them on a collision course with a shadowy adversary orchestrating the game from the dark.