Wolfs is in prison, accused of murder and rape. Eva and Daan cannot believe that Wolfs has gone that far. But the money that turned up in the suitcase makes Eva have her doubts. What do they really know about Wolfs? When Eva visits him in prison, Wolfs asks her to trust him. He did indeed have an argument with Loretta's boyfriend, but he did not kill him. According to him, there is a witness who saw that the boy was unharmed when Wolfs left. However, the national criminal investigation department cannot find this witness. Eva and Marion try to find him themselves and eventually manage to locate the man. Wolfs is released but remains suspended, and according to Hoeben, he cannot remain with the Maastricht police force. The question is, who did kill the boy and try to pin it on Wolfs? Or does Wolfs have something to hide after all?

During a fight between two girls in a schoolyard, knives are drawn. Both girls end up injured in the emergency room. When Eva and Wolfs come to pick them up for questioning, the attending physician points out to Eva that Loretta, one of the girls, is probably being systematically raped and abused. That could also explain her aggressive behavior. Eva and Wolfs go to talk to Loretta, but she doesn't want to talk about anything. Wolfs and Eva identify the possible perpetrators: her boyfriend, who may be her pimp, and her stepfather. Daan and Romeo are assigned to trace a cell phone number that is used to call 911 several times every night. They quickly find the owner of the phone: a man with two young children who admit that they occasionally dial the number. But when they call 112 again the next night after being reprimanded by the police, Daan suspects that there is more to it than meets the eye. Loretta's case also takes an unexpected turn that unpleasantly surprises Wolfs and Eva.

During a tour of the Maastricht casemates, the future son-in-law of Uncle Will, a well-known financial genius who invests a lot of money for the happy few in Limburg, disappears. A massive search is launched, but to Wolf and Eva's surprise, the young man has vanished from the casemates. Hoeben doesn't immediately see this as a case, until it turns out that the boy had an appointment with the police on the day of his disappearance. Uncle Will knows what that was about: the boy had swindled him. Uncle Will had agreed with him that he would turn himself in and return the money, but now it appears that he has run away. When Will's much younger wife also disappears, the picture seems complete: the boy and the woman have run off with Will's money. Will and his daughter are inconsolable. Can Wolfs and Eva find the two? Daan has his first case as a detective; a girl has reported the theft of her expensive iPhone. A ghost from Eva's past reappears when she finds a small portion of the money that was in the explosive suitcase in the Ponti's kitchen.

A police officer is found dead on the Maastricht golf course. Wolfs does not want Eva to work on this case, because she is already having a hard time coping with her rape. But Eva does not want to sit at home feeling sorry for herself and simply rejoins the investigation. The deceased is a well-known community police officer. In his spare time, the man was investigating young people who hang out on the golf course at night. The question is whether that proved fatal for him. The investigation takes a different turn when a car with two bodies inside is found in the water near the golf course. The detectives quickly suspect that the community police officer witnessed a settling of scores. And they discover that there must have been another witness. But when they finally find him, he refuses to cooperate. Marion and Romeo have their hands full with a compassionate local resident who wants them to take care of a disabled homeless man. But finding shelter for the man is not easy. The local resident then decides to help the homeless man herself. And she shouldn't have done that. Meanwhile, Wolfs also has his hands full with his daughter, who is being forced to go through rehab in a clinic.

A half-naked, abused student is found in the city. She is terribly confused, but Eva and Wolfs quickly realize that she has been raped. Eva fears that a rapist who terrorized the area a few years ago is active again. After analyzing the rapist's signature and the evidence found, it appears that she is right. Chief Inspector Hoeben decides to set a trap, and Eva volunteers to be the target for the perpetrator. Wolfs is put in charge of the operation. The trap seems to work; a man who attacks Eva is arrested. Meanwhile, Romeo and Daan go to a known drug den after receiving complaints about noise pollution. There they find Fleur unconscious. She has taken an overdose. Romeo immediately informs Wolfs, who rushes to the hospital. He abandons the operation to catch the rapist. Then Eva discovers that the arrested man is not the rapist.

During a house viewing, a dead body is found. It turns out to be the real estate agent who was supposed to conduct the viewing, but who did not show up for work that day. Through the agent's diary, Wolfs and Eva discover a mysterious buyer who had appointments with the agent not only that day, but several times a week for quite some time. The detectives discover that a married woman is hiding behind the buyer's name. Is this a crime of passion? Daan and Marion are sent out on a "white feet" campaign to make citizens aware of open doors and windows that make it easy for intruders to break in. But that turns out very differently than they expected.

A municipal official is found dead. When Marion goes to inform the family, she finds his young daughter home alone. Her mother also died recently. Marion must find a place for the girl to stay. Wolfs and Eva have to find out whether the man committed suicide or was murdered. They soon discover that the man was responsible for construction projects on behalf of the municipality. Romeo has to train a new colleague, Daan de Vos, an Amsterdam native who is joining the police force as a lateral entrant and will become a detective after completing an accelerated course. A job that Romeo himself aspires to, incidentally. Their collaboration is therefore not exactly smooth sailing.

At a boarding school, a Dutch teacher is found dead after a picnic with her favorite class. The cause of death is initially a mystery. The case becomes even more complicated when the detectives discover that the victim had assumed someone else's identity. So who is this woman? When it turns out that she died from a strange combination of hallucinogenic drugs, her ex-husband, a local pharmacist, comes into the picture. But the school principal and the girls in her class also have their secrets. Romeo and Marion encounter a quack who defrauds vulnerable patients. At least, that is the story of the person who comes to file a report. But Marion begins to have doubts when the self-proclaimed doctor manages to alleviate her symptoms, which no one else has been able to treat. Romeo informs Wolfs about Fleur's drug use.

A local politician is shot while hunting. Eva and Wolfs investigate whether it was an accident or murder. The detectives soon discover that the man was not well-liked. He used his political position to further his own interests, which earned him many enemies. Even his friends and family did not always support him, but they are reluctant to talk about it. That changes when a second person is killed. Romeo and Marion investigate a number of cases of debit card fraud. They quickly identify a suspect, but when they arrest him, he appears to have a strong alibi. Romeo and Marion are suspicious and continue to observe the man.

After shooting Luca, Wolfs seems to have disappeared with the money. But then he suddenly reappears, with the suitcase. He is then suspended pending the investigation into Luca's death. While Wolfs is at home, the Maastricht police are busy. A particularly valuable Fabergé egg is on display in the city. Hoeben has arranged security. There is also a lot of commotion due to the crowds attending André Rieu's Vrijthof concerts. Marion and Romeo stop a driver who is not using a hands-free device. The driver has no intention of stopping; he floors it and drives off. When the driver is apprehended after a chase, the police find traces of explosives in the car. A list of employees and dates of André Rieu's Vrijthof concerts is also found. Is an attack being planned against him? The detectives talk to Rieu's security team and it soon becomes clear that a deranged fan has threatened to blow up Rieu.