The Investigation is the immersive and true story of the police’s dramatic investigation of the submarine case.

In close cooperation with Ingrid and Joachim Wall, Head of Homicide Jens Møller and Chief Prosecutor Jakob Buch-Jepsen, Tobias Lindholm has created an authentic, nerve-racking and deeply touching series about the challenging and crucial work done by police officers, divers, Swedish cadaver dogs, marine scientists and volunteers to solve the killing of Swedish journalist Kim Wall. It is about the substantial and complicated task subsequently faced by the prosecution to convict the perpetrator.

For over eight months, we follow Head of Homicide Jens Møller (Søren Malling) and his team of dedicated investigators (Laura Christensen, Dulfi Al-Jabouri, Hans Henrik Clemmesen and Anders Juul) in their tireless investigation into what became the most talked-about murder case in Danish history. On paper, it looked like a very simple case: A man and a woman take a trip on a submarine. The man comes ashore alone. When the submarine is raised, the police find traces of blood from the young woman in the otherwise thoroughly cleaned hull.

It quickly turns out, however, that the case is not quite so simple. There is no body, no cause of death, no motive and no murder weapon.

THE INVESTIGATION gives us an insight into Jens Møller’s methodological investigation. Into the Swedish cadaver dogs trained to locate bodies far below sea level. It gives us an insight into the currents in the Sound and Køge Bay, into the work of the divers from the Navy Diving Service and into the challenges chief prosecutor Jakob Buch-Jepsen faced in his battle to prepare the case for court.

We also gain an insight into the unusual and touching friendship that arose between Head of Homicide Jens Møller and Kim’s parents, Joachim and Ingrid Wall (Rolf Lassgård, Pernilla August). And it shows us how the encounter with Ingrid and Joachim and the case in general became important to Jens Møller’s relationship with his own family, and why this particular investigation was Jens Møller’s last as Head of Homicide.