Oskar, a bullied 12-year old, dreams of revenge. He falls in love with Eli, a peculiar girl. She can't stand the sun or food and to come into a room she needs to be invited. Eli gives Oskar the strength to hit back but when he realizes that Eli needs to drink other people's blood to live he's faced with a choice. How much can love forgive? Set in the Stockholm suburb of Blackeberg in 1982.

Detective Harry Hole investigates the disappearance of a woman whose scarf is found wrapped around an ominous-looking snowman.

In the early 1970s during the Cold War, the head of British Intelligence, Control, resigns after an operation in Budapest, Hungary goes badly wrong. It transpires that Control believed one of four senior figures in the service was in fact a Russian agent - a mole - and the Hungary operation was an attempt to identify which of them it was. Smiley had been forced into retirement by the departure of Control, but is asked by a senior government figure to investigate a story told to him by a rogue agent, Ricky Tarr, that there was a mole. Smiley considers that the failure of the Hungary operation and the continuing success of Operation Witchcraft (an apparent source of significant Soviet intelligence) confirms this, and takes up the task of finding him.