Frank, who has no criminal record, attacked an armored car and then turned himself in voluntarily. His behavior is a mystery. In prison, he met Fuad, an Arab who was paranoid, unscrupulous and protected by his own gang. In order to get close to Fuad, Frank intervened in the drug trade by the prison fence, thus getting stuck between the German gang and the Arab gang, two rival prisoner gangs. To gain the trust of Fuad, only with the help of Suzanne, the prison guard, so Frank and her very close. What he doesn't know is that Suzanne is actually part of the drug trade and has a physical relationship with Fouad. All he knows is that his wife and daughter died in a car accident, and Fouad was the driver who escaped with a hit-and-run. All he knows is that the purpose of his coming here is revenge.