Reykjavík detective Gunnhildur Gísladóttir tries not to believe in ghosts, but when her comrade Helgi is certain he's seen a man who had been declared dead more than 15 years ago, she reluctantly gives him some unofficial leeway to look into it. Has the not-so-dead man returned from the grave to settle old scores? Even the rumor is enough to spark a storm of fury and revenge, and in this seventh outing (after Cold Breath) Gunnhildur and Helgi are caught up in the middle of it.