When diamonds are found in the B&B of a murdered owner, the case seems to be connected to an earlier robbery of a diamond dealer in Maastricht. It seems that the robbers received help from the inside. When it turns out that the B&B was paid for with the credit card of an employee of the diamond dealer, the case seems to be solved quickly. Romeo and Marion are faced with a report of dating fraud. A fictitious person has swindled the victim out of thousands of euros.

Richard Steen, an old acquaintance of Wolfs, comes to Maastricht for help. His informant turns out to be in hiding in Maastricht, while two hitmen are hunting him. Will Wolfs and Eva succeed in finding the informant before the criminals kill him? Things aren't going well with Tara, but Marion is forced to leave her alone when Romeo needs her help. He is afraid that Joël will do something thoughtless to his violent father. Wolfs is in for a surprise.