A woman's body is found on a bridge at the exact Sweden-Denmark border. Saga Noren from Malmo CID and Martin Rohde from the Copenhagen PD are called to the scene. The body turns out to be the torso of a high-profile Swedish politician and the lower body of a Danish prostitute.

The killer reveals through the media that the murder on the bridge was only the beginning, and his purpose is to draw attention to unpleasant societal truths. Saga and Martin realise they are dealing with a ruthless killer.

To draw attention to the increased number of people falling through the cracks of society, the killer kidnaps a homeless man and demands a large ransom from four landlords for his survival. So what is the price of a human being after all?

The homeless man's survival depends on the landlords' willingness to pay the ransom. Saga and Martin see that they are dealing with someone who has planned his crimes down to the smallest detail. They wonder if they can catch the murderer off balance by doing something he doesn't expect.

The murderer has groomed schizophrenics to commit synchronised violent crimes in Malmo and Copenhagen, to highlight funding cutbacks for mental health care. Saga and Martin get a break in the case, a teenage girl who has run away from home. Could she be the witness that ultimately leads them to the murderer?

The failure of integration turns out to be the fourth problem. Copenhagen is in turmoil after a trial in which a group of policemen who assaulted an immigrant to death is freed. One of the accused policemen kidnapped from his home and the search for him leads to riots. At the same time may say for the first time in direct contact with the offender

Offender's fifth and final problem is our indifference to child labor. A school bus with children disappear and the offender requires the five companies that indirectly exploit child workers is set aflame. For every company with a passion put one of the children free. According to Saga suggest everything in the report that the perpetrator is one of its own

Saga and Martin anticipates and hearing a colleague suspected of being "Bromördaren". He proves to have an alibi for all the opportunities for crime, but is he really innocent? The offender is ready, he has succeeded in its aim to point out five problems in society. But Saga have a feeling there will be more. Maybe it's all about personal revenge?

Bit by bit in the complex puzzle are in place and the tracks and clues in the investigation leads Saga and Martin to a man who could be the perpetrator. While they come ever closer, it turns out that the case has suddenly become more personal for Martin than he ever could have imagined

Despite his injury Saga refuses to give up and do anything to solve the case. Martin, who is personally involved, doing everything possible to find the perpetrator in time. It becomes a cat and mouse game where it looks as if the offender will succeed in his personal revenge