Frank, a man with a spotless record, robs an armoured car and then turns himself in. His motives are a mystery. In prison, he crosses path with the unscrupulous and mistrustful Fuad, who is under protection from his Arab clan. To get closer to Fuad, Frank gets involved in the drug trade behind bars, eventually getting caught in the crossfire between rival German and Arab inmates. The only person Frank trusts on the inside is Susanna, a prison guard. Unbeknownst to Frank, Susanna is part of Fuad’s dealings, but is also sexually involved with him. Nevertheless, the two become close.
What only Frank knows is the real reason for his incarceration: his wife and daughter died in a tragic hit-and-run with Fuad behind the wheel. As he escaped punishment, Frank has been out to exact revenge ever since.
