Shadow hunting. Row K.

1944. Stockholm. A brutal murder has been committed in the area that has enjoyed bad glory. One of the first to arrive at the crime scene is Elsi Svenns, a young girl who recently entered the police service. The killer is in no hurry to run away from the law enforcement officers, and when Elsi is in his way, her fate has already been a foregone conclusion...

thirty years later, Britt-Marie Udun, one of the first female detectives in Sweden, begins the investigation of a complicated case. From the scene of the crime she throws her trembling: everything is too reminiscent of the nightmare of her past: many years ago, her mother died in these slums, nicknamed the swamp. The criminal in everything remained faithful to his style. But only this time the victim survived.

colleagues do not perceive Britt-Marie seriously, but she has the power to be reckoned with, and it seems that she is about to come close to unraveling. But her perseverance is not enough to get into a fight with a ruthless killer. The criminal eludes, and Britt-Marie disappears with him.

In the 80s, her mysterious disappearance begins to raise questions. It seems that the so -called swamp killer again reminded of himself. Another murder, after so many years. Police turn to Hannah, Profeler, hoping that she will help to go on the trace of the criminal. But everything is to no avail, the killer is elusive.

and now 2019. Malin Brundin, a burden of responsibility on her shoulders, is taken to work, she is responsible for the victims of the swamp killer.

, for so many years, women who conquered their place in the world, undividedly owned by men, are hunting alone shadow. Will the killer eliminate again?