Three men enter a luxury apartment in Stockholm dressed as couriers. But what appears to be a robbery ends in a brutal murder that resembles an execution. Vilhelm Beck's patrol is the first to arrive. Haunted by his memories as a hostage, Vilhelm soon begins his own investigation into the case, which leads to a surprising contact with the Beck group.

Alex Beijer participates in a morning show on TV, but it develops into a nightmare when an unlikely hostage drama arises in the TV studio.

A man is found dead, stabbed to death with a knife. The shocking thing is that his face has been removed. After questioning his wife who described the marriage as happy also told that a mysterious foreign man knocked on their door the day before the murder. Beck and his men are given the case.

A Greek restaurant owner is brutally tortured and killed. Beck and his team investigate, and are drawn into a world of smuggling, threats, and violence.

An Asian woman is found dead in the water of Stockholm's archipelago. She has been murdered, and everything indicates that she was a prostitute. Meanwhile a series of break-ins has occurred on an island outside of Stockholm. Suddenly a retired old man is also found dead in his own yard. Now Beck has two cases to solve and they both point in the same direction.

Mother of an autistic boy is found murdered in her home. The boy holds the murder weapon, covered in blood.

Former sports minister John Vedén disappears and it quickly becomes apparent this is connected to his addiction to gambling.

Beck and his men investigate the murder of a Russian woman. At the same time, SÄPO (The Swedish Security Agency) sees a chance of getting a Russian in the embassy deported.

A candidate for the Nobel Peace Prize is brutally stabbed to death in central Stockholm following a meeting with two lawyers from the war tribunal in The Hague. One of the witnesses worked with Alex when she was stationed in the Middle East and they have an attraction to each other that makes Josef think she should stay out of the investigation. Meanwhile, Klas Fredén is pressuring the group to resolve the politically charged case before SÄPO takes over.

The bodies of two men are found buried in the woods and, despite persistent attempts, they cannot be identified. When another man is murdered the police discover new evidence which they believe links the murders to an Islamist terrorist cell.

Inspector Beck and his team get involved in a large-scale smuggling of cesium 133. A gang from the east uses refugees who with a promise to stay in Sweden and with danger to their own life take in the dangerous explosive chemical substance.

Beck gets a call from a colleague who's in Stockholm for an art auction. He was outbid by a woman who was later found dead in his hotel.

An elderly woman dies in a hospital in Stockholm from what seems to be an incurable disease, but her son refuses to believe that it was the disease that killed her.

When the coach of a suburban junior hockey team is murdered, the police investigate. Martin struggles in his new position.

When the police uncover a narcotics smuggling operation, the driver is shot dead. The man turns out to be Superintendent Martin Beck's son. Beck breaks down and steps away from the investigation but later returns at his colleagues request.

A small girl is found dead in a deserted underground cellar. She has been dead for some time but there is fresh food for her. Who is she?

When the charred remains of a woman are found, Sapo, the Swedish Security Services, suspect Gunvald Larsson of being mixed up in her murder.

When a well-known crime boss is murdered by a sniper in front of his family, Beck and his team are challenged to discover which one of his many enemies could be responsible for the crime.

An investigative journalist is found murdered in his home, along with the fingerprints of a notorious criminal debt collector.

Martin Beck is drawn out of retirement into a case of a missing girl in Stockholm.

A famous Swedish lawyer is brutally murdered in his apartment. Martin Beck and his team find a clear murder motive. Hansson had a good chance of winning a case against a multinational company. But it appears Hansson was not completely honest and had several links with the underworld.

A murder in a wooded area and a man who died suddenly in a heart attack after being awakened in the middle of the night by a masked burglar. Can the events have any connection?

A man is found dead at a flea market in southern Stockholm. It looks like an ordinary robbery gone wrong, but the investigation takes an unexpected turn when the secret police (Säpo) take an interest in the case.

A man working at a garbage incinerator watches the body of a dead man burned to ashes in the oven. Police detective Martin Beck handles the case. All he knows is that a brutal murder has happened. But he does not know when or where. He has no body, motive or a crime scene, not a single trace. All he has is some teeth and a mysterious Internet adress.

A bomb threat is called in to a police station in Stockholm. The police bomb squad blows the briefcase to pieces and it looks like false alarm, until a baby is found inside. Soon, e-mails are sent out to every newspaper about the nasty situation that the police had tried to keep secret. Will the police ever overcome the "Monster"?