On a shooting range outside of Stockholm in the raw September night something is not right. In the darkness of the marker the ground shows signs of blood.

Harry Friberg receives a photo assignment at Lindarängen's airport in Stockholm. The assignment turns into a nightmare when the photographer is invited to a crayfish party by the company's director.

Harry Friberg photographs a mysterious lightning in the water outside the Blockhusudden. The light turns out to flow over a murder.