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 recovered at sea, traces of her blood and her cell phone are found on it, but there is no trace of the former commissioner herself. A SOKO, headed by the new police commissioner Lena Jansen, takes over the investigation. The investigative team not only has to solve Hella's disappearance, but also the death of 15-year-old Viviane, who was found in the woods by her friend Charlotte Broder and probably died of a drug overdose. Kessler realizes how little he knew about the life of his former colleague. After years, Hella's sister Rieke Lehwald suddenly appears with her husband Paul. Do the two have something to do with Hella's disappearance? Is it about an inheritance or a relationship act?

Les commissaires Lena Jansen et Simon Kessler enquêtent sur des meurtres dans la ville côtière de Nordholm.

Nach einem verpassten Anruf und einer beunruhigenden Mailboxnachricht seiner ehemaligen Kollegin Hella Christensen macht sich der Ermittler Simon Kessler auf den Weg nach Nordholm. Dem Kommissar ist klar, dass etwas Schlimmes passiert sein muss. Als Hellas Segelboot auf dem Meer geborgen wird, finden sich darauf ihre Blutspuren und ihr Handy, von der ehemaligen Kommissarin selbst fehlt jede Spur.

Dopo aver ricevuto un messaggio inquietante dall'ex collega Hella Christensen, il detective Simon Kessler parte per Nordholm consapevole che deve esserle successo qualcosa di brutto. La barca a vela di Christensen viene trovata abbandonata in mare aperto e vengono rinvenute macchie del suo sangue, eppure non c'è traccia della donna. Nel frattempo, la squadra investigativa registra anche la morte della quindicenne Viviane, trovata nei boschi dalla sua amica Charlotte Broder e probabilmente morta per overdose. Kessler, intanto, si rende conto di quanto poco sapesse sulla vita dell'ex collega.