After a missed call and a disturbing voicemail from his former colleague Hella Christensen, investigator Simon Kessler sets off for Nordholm. The commissioner is aware that something bad must have happened. When Hella's sailing boat is rescued at sea, traces of her blood and her cell phone are found on it - there is no trace of the former commissioner herself. A soko, led by the new commissioner Lena Jansen, takes over the investigation.
Freddy Kowalski and Emile Ramzy are paramedics in Hamburg and race night after night through the city, regardless of congested intersections, red lights and oncoming traffic. They are real life savers. One day they witness a murder and decide to go to the bottom of the thing itself. They come across an explosive corruption scandal that brings them in danger. Without knowing it, they hold the most important keys to investigate the crime itself in their hands.