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"?

A homosexual police officer's double life is paid by Beck's archenemy, Gavling, a man who runs Stockholm's underworld. In return, the officer has been providing Gavling with secret information from the police archives.

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.

Martin Beck, Gunvald Larsson and Alice Levander investigate the mysterious murder of an accountant that was found shot to death at the airport parking. At the same time a reporter receives a package from an anonymous source, with information regarding the embezzling of funds that should have been used for fixing up nuclear reactors. When the reporter contacts Beck, his home gets blown up by a bomb.

A series of grisly murders where the victims faces have been removed by acid starts to turn up around Stockholm. Detective Martin Beck and Gunvald Larsson are once again drawn into the darkness.

A brutally battered woman, Monika, manages to flee from her home with her two children. Later, the body of a dead man is found in the same house. The murder was preceded by an assault; bloodstains found in the kitchen correspond to Monika’s DNA.

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?

A teenage girl is found by her parents brutally raped and murdered in the woods. It's now up to Beck and his team to catch the criminal.

Two girls are hit by a train and killed instantly. Was it murder or a double suicide? Martin Beck and his team must answer the question of whether the pressure and intimidation faced by these young women in their everyday lives led to their deaths.

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 the body of a district attorney is found suspicion falls on the leader of a motorcycle gang, but then his body is also found in similar circumstances.