Several known criminals already have been murdered by a professional killer, leaving no trace but the "ace" game card. The police suspects a new mob is trying to take over the district. The investigating police officer Jan is victimized by a bomb himself, when he's at his girlfriend Daniela's father's Italian restaurant. Although paralyzed and suspended from work, the tuff cop continues to investigate and takes revenge on the gangsters who did this to him.

Daniel accidentally witnesses a kidnapping on the street. After his report to the police didn't get the attention he had hoped for, he looks for an explanation himself and gets more and more entangled in doubts about his surroundings and his own actions. Through his commitment, he finds himself increasingly exposed to violence and eventually kills a person. During the interrogation by the public prosecutor, he experiences the purgatory of his awakening.