In 1983 East Berlin, dedicated Stasi officer Gerd Wiesler begins spying on a famous playwright and his actress-lover Christa-Maria. Wiesler becomes unexpectedly sympathetic to the couple, and faces conflicting loyalties when his superior takes a liking to Christa-Maria.

The clues to a young woman's death come together as the lives of seemingly unrelated women begin to intersect.

In 1920s Ireland young doctor Damien O'Donovan prepares to depart for a new job in a London hospital. As he says his goodbyes at a friend's farm, British Black and Tans arrive, and a young man is killed. Damien joins his brother Teddy in the Irish Republican Army, but political events are soon set in motion that tear the brothers apart.