A researcher with a major breakthrough is killed, and the police must now try to find out why and whether there is a connection to the billionaire Freddie Klink.

The murder of an environmental activist leads Van der Valk on the trail of a missing singer who everyone assumed was dead. Now Piet suspects the singer of being a murderer.

When a whistleblower is killed before an important court case, Van der Valk is called in to ensure that the other witness gets to court alive.