Hamburg’s summer cathedral: rides, flashing lights, fairground music. At the edge of the cathedral, rescue team Holger Krawitz and colleague Petra Winkler are routinely on foot.
While Holger fetches a coffee, Petra is left alone. Then, in a nearby dark parking lot, she notices a young woman who appears to be in distress. Petra goes to help her and is beaten up by a group of youths.
Helen finds Petra badly injured and administers first aid. Shocked by this brutality, Helen makes it her mission to find the perpetrators. But the very next day, Michi, a youth from Hamburg’s fine social circles, is found dead, drawing Helen’s attention to the crime. Helen, Weyer, and new colleague Katharina Tempel and their team investigate the young man’s surroundings, his parents and friends. When the paramedic Petra dies, a race against time begins. Could it be that both cases have more to do with each other than first assumed?