Wolfs and Eva are added to an Amsterdam team that is eager to make a big drug bust in Maastricht. Wolfs doesn't trust Eva around heroin and assigns her to work on something else. He shouldn't have done that, because the arrest turns into a shootout in which one of the Amsterdam detectives is killed by a bullet from Wolfs' gun. Romeo has completed the leadership course and has developed a good relationship with the course leader.

While Wolfs investigates the murder of a drug dealer, Eva tries to find out what happened to Akua in Liège. When she finds her murdered, it hits her hard and she makes a radical decision. Meanwhile, Wolfs discovers that the murdered dealer also supplied drugs to Alkje, the victim of Belgian killer Carlito Hinch. Was he killed for drugs, or is he also a victim of the society? Journalist Juliette Bison helps Wolfs investigate the society, but it's not without a struggle.