A film crew sets sail on a catamaran to film a horror film where the scenes are improvised in chronological order, keeping the cast in the dark about the story. But what happens behind the scenes may be the real horror.

In a post-apocalyptic adventure in the Swedish archipelago, a science team struggles to find a way to protect the few surviving humans from a lethal mushroom organism. Forced on a journey through the wilderness to find a new bunker in which to continue their research, they come into conflict with an armed gang that uses a drug to delay the effects of the organism. The scientists want to find a more permanent solution, and have to fight for the very survival of humanity.

A body is found in the water near Liljeholmen. The body belongs to a 39-year-old Danish citizen with a solid criminal record and who was a member of a notorious Danish drug gang. Should the Beck Group get a gang war on their necks? Martin Beck is back to the joy of the entire Beck group. Martin's daughter Inger is not as happy but has to accept her father's decision to start working again.

In 1981, after the successful test of a submarine tracker device developed by the Swedish scientist Paul Mandell and sponsored by the US government through his representative Miller, his industry is totally burned and the laser device is stolen. Stig Larsson from the Swedish Secret Agency suspects of an inside job and brings the Swedish Marine Thomas Kallin to investigate Paul undercover as his driver. The naive Kallin is double-crossed but continues his investigation while Larsson finds the truth about the heist.

Trapped in a mysterious room with no escape, four brilliant minds race against time to prevent a cosmic collapse of the universe. They must learn to work together and solve the puzzle before it's too late.