A Stuga On the Cusp of the Orust Riviera, tucked away next to a hobbit hole in the woods.
It is Midsummer's Eve. Three young friends meet in a wood to act out an elaborate masque. But unknown to them, they are being watched. With a bullet each, all three are murdered. Soon afterwards, one of Inspector Wallander's colleagues is found murdered. Is this the same killer, and what could the connection be? In this investigation, Wallander is always, tantalisingly, One Step Behind.