The final (for now) Kenneth Branagh Wallander is on tomorrow at 9pm on BBC1 : The Fifth Woman
An elderly bird-watcher falls to his death in a meticulously-planned and brutal murder. In an apparently unconnected case, a local man disappears and Wallander gets too close to one of the suspects. Wallander believes he is on the trail of a serial killer bent on revenge.
My review of the audio book is here.