The Oldenheim Twelve

When an unknown man arrives in the village of Schouwendam, it causes a great deal of unrest among the residents. The man claims to be Olaf Witte, who disappeared without a trace from the village 25 years ago.

After her boat is found floating on the lake, an extensive search is launched for Maud van Keulen. Is there a connection between her disappearance and the possible return of Olaf Witte?

Several residents of Schouwendam reminisce about the time when Olaf and Alice disappeared. But it soon becomes apparent that some of these stories contradict each other considerably.

Now that the mysterious man is slowly regaining his memory, it seems that he is still Olaf Witte. The investigation is focusing on an area where allotments used to be.

A local man refuses to provide DNA for a paternity test, leading many people to believe that he must be Olaf Witte's father.

Karlijn is confronted with her own past when she comes under increasing pressure to solve the mystery. There are new victims in Schouwendam and the residents' paranoia is reaching dangerous levels.

The shock of what was found in the forest reverberates throughout the city, and the suspected perpetrator has since fled. Karlijn van Andel tries to get a grip on what is going through her mind and talks to her psychologist.

Karlijn and the man who still believes he is Olaf Witte reconstruct everything that happened in Poland. This yields a number of astonishing insights and conclusions, causing the case to take an unexpected turn.

Slowly but surely, it is becoming clear what happened in 1995, on the evening that Olaf and Alice disappeared.

The truth is fully revealed. What happened to Olaf and Alice in 1995? Is the unknown man Olaf Witte? Who committed the murders in the present?