“Silent Scream’: The start of Arne Dahl’s new crime series from Sweden. First it hits a boss in the steel industry, then a marketing manager working for the car lobby.

In Sweden, home-made bombs kill two people before the bomber contacts the police - and threatens more. A climate activist gone astray, it seems, who babbles about sin, holy anger and revenge in his letters. A letter of confession that has emerged suggests that a former colleague of Eva Nymann, who now lives as a dropout in the forests of Sweden.