Eva falls into the hands of Frank's killers. Wolfs discovers that Luca is abusing his daughter to blackmail Eva. Marion is also missing, but no one except Romeo has time to look for her. He discovers that she is being held hostage by the person who has been threatening her all along, and who now intends to carry out his threats. Luca turns out to be playing a double game in order to get his hands on some of Frank's money.

Frank's killers contact Eva. They want the money Frank stole from them back. Eva refuses to cooperate, of course, but the criminals have taken that into account. They have a way to force her to hand over the money. Eva then has a problem: she needs a code to withdraw the money from the Luxembourg bank. And that code is missing from Frank's papers. Marion's blackmailer is finally arrested; he appears to be a business partner of Romeo's girlfriend. Romeo therefore feels compelled to break up with his girlfriend.

A bank robbery keeps Wolfs and Eva busy. The perpetrators have taken the bank director's mistress hostage and forced him to open the vault containing millions of euros intended for the Tefaf art fair. The robbers manage to escape cleverly. Wolfs and Eva conclude that they must have had a lot of inside information and investigate the social circle of the bank director and his mistress. They quickly find the perpetrators. But where have the millions gone? Eva also appears to have a strange money problem, which puts Frank's death in a completely different light. Marion argues with Romeo about her investigation into his girlfriend's bowling alley. And the anonymous threats against her continue.

A businessman is found murdered in a part of a park known as a gay meeting place. The businessman led a respectable life with his wife and son, who are both shocked when they realize that their husband and father frequently visited gay circles. The case leads Eva and Wolfs into the shadowy world of male prostitutes and escort boys. Marion, as a community police officer, talks about criminals who invest their money in Maastricht's hospitality industry. She runs into trouble when Romeo's girlfriend turns out to have a business that may not be entirely above board. And then she also receives anonymous threats.

Eva is still at home and is getting tired of it. She wants to go back to work, but the company doctor and Chief Inspector Hoeben have their doubts. Wolfs is assigned to the case of a dead neo-Nazi. The trail quickly leads to a group of neo-Nazis and their sympathizers, but the group refuses to talk to the police. Even the CIE, which has a source within the group, cannot help them further. Despite Wolfs' protests, Eva ultimately decides to try to join the group incognito. She attends a meeting and manages to win the trust of one of the boys. She is invited to attend a survival camp. Wolfs is vehemently opposed, but Eva thinks the opportunity is too good to pass up. They know where the camp is being held, so they can keep an eye on Eva while she finds out who killed the boy. Marion has since started working as a community police officer and immediately gets to work. After a number of warnings, an antisocial family is evicted from their home. And that doesn't happen without a fight.

Eva is on leave and trying to come to terms with her husband's death. Romeo is allowed to assist Wolfs in the murder of the chef of a Michelin-starred restaurant. The collaboration between Wolfs and Romeo is not as pleasant as that with Eva. Nevertheless, Wolfs and Romeo get a glimpse into the world of haute cuisine, where ambition, jealousy, and ambition play a major role. Marion has to deal with a video camera stolen from the hospital by a junkie. It contains the last message a dying girl made for her family. Marion and Chief Inspector Hoeben do everything they can to find the camera before the images are deleted.

It's going to happen after all; Eva and Frank are getting married. Wolfs has no choice but to accept it. Just like Aeisha, an Afghan girl who is threatened with being forced into marriage. But not everyone accepts the way things are. And that leads to murder and manslaughter.

While Eva and Frank are preparing for their wedding, she and Wolfs are confronted with a Maastricht resident who has been shot. Afterwards, he cannot remember anything about the shooting. Wolfs and Eva must investigate what happened, and the trail quickly leads to illegal prostitutes and human traffickers. Marion and Romeo are searching for a missing girl.

A student reports to the police station. She claims that she was raped by acquaintances during a party, but her friends say that she wanted it. Just as Wolfs and Eva are able to prove that she was raped, the girl withdraws her report. Romeo and Marion also have to deal with a victim who does not want to file a report. They are not satisfied with that.

After a night out in Maastricht with her friends, a woman from Amsterdam is found dead in the Maas River. None of her friends have any idea what happened to her. Wolfs and Eva investigate the woman's movements. The only clue seems to be a brief encounter she had with a man on a terrace on the Vrijthof, after which the man quickly disappeared. Wolfs and Eva discover who the man is. But why was he startled by the victim if he didn't know her? Wolfs wants to talk to Frank about what happened between him and Eva. But that conversation turns out very differently than he expected. And Marion is in for an unpleasant surprise when her husband visits her at work.