Katja Sekerci (Diane Kruger
) lives in Hamburg, Germany with her Kurdish husband Nuri (Numan Acar
) and their six-year-old son Rocco. They work together and one day Katja leaves Nuri and Rocco at work to go to a spa with a friend. When she returns, she finds the building in rumbles from a bomb. Police are all around, and she learns her husband and son were killed in the bomb blast.
It's discovered that a Neo-Nazi husband and wife team planted the bomb. Danilo (Denis Moschitto), a lawyer and Nuri's best friend, represents Katja in the eventual trial against the two suspects. The trial pushes Katja to the edge, but there's simply no alternative for her: she wants justice.