Berlin psychiatrist Viktor Larenz wants to escape the anniversary of his daughter Josy's disappearance on a North Sea island. There he is visited by the mysterious Anna Spiegel, who seems to know more about Josy's fate.

Larenz feels unwell and searches for Anna Spiegel to find out more about the disappearance of his daughter. He gets unexpected support from Bentje, a young local who works in the hotel.

On Parkum, the situation is out of control. Feeling increasingly unwell, Larenz believes he's being threatened by Anna Spiegel, so lets his neighbour, Halberstaedt, teach him how to handle a gun.

Viktor must face up to the consequences of the tragedy and is forced to remember events from two years ago that he would rather forget. Roth attempts to patch up his relationship with his daughter Mila, but once again, his job stands in his way.

Viktor tries to come to terms with the new reality of his life. He decides on a drastic step to help him uncover the secret of Josy's disappearance. Only his old friend Riegger can help him.

Re-live the day of Josy's disappearance. The last secrets are revealed. Both Viktor Larenz and Roth must live with the consequences of their actions.