Unofficially investigating a suspicious suicide, Inspector Erlendur becomes increasingly unsettled by the unsolved cases of two young people who went missing decades earlier under circumstances tied to his own past.

"Retired detective Konrad returns to a haunting cold case in The Darkness Knows by Arnaldur Indridason, the "undisputed King of the Icelandic thriller." -The Guardian (UK) A frozen body is discovered in the icy depths of Langjökull glacier, apparently that of a businessman who disappeared thirty years before. At the time, an extensive search and police investigation yielded no results-one of the missing man's business associates was briefly held...

In this series prequel, Erlendur has recently joined the police force as a young officer and immediately sinks into the darkness of Reykjavik's underworld. Working nights, he discovers the city is full of car crashes, robberies, drinkers and fighters. And sometimes an unexplained death. A homeless man Erlendur knows is found drowned, but few people care. A young woman on her way home from a club vanishes. Both cases go cold. Two lost people from two...