The date is 31st October, and the year is 1973. In his private detective office in Oslo Kolbjørn “K2” Kristiansen is visited by a shook-up lecturer. The lecturer thinks it’s unbelievable that an old friend in Gjøvik would die in a fall accident and underlines it by pointing out his friend was scared of heights. Kristiansen’s investigation in Gjøvik points to the death being an accident or suicide. He writes off the discovery of a dice on the crime scene as a coincidence, but he does wonder why the widow of the deceased doesn’t know about his fear of heights or his lecturer friend.

Before K2 has time to ask his client about this, the lecturer passes away after being hit by a car. It turns out those left behind in his family also don’t know anything about his so-called friend in Gjøvik. K2’s confusion turns into a suspicion that a double murder has occurred, once he at the crime scene in Oslo finds another dice. K2 has to seek help from his secret advisor Patricia to clear up the mystery of how the two victims are connected. It will be a long, difficult task to stop this faceless and nameless dice killer…

The Dice Killer is the 11th novel in historian Hans Olav Lahlum’s classic crime novel series set in 1960s and 1970s Norway.