Darkness those who kill is a gripping drama series dealing with a series of brutal murders that opens up a web of intrigue and deceit for the officers investigating.in copenhagen, detective jan michelson is desperately trying to keep the case of a missing girl open, and when she digs into the police archives she finds a similar case dating back ten years'. '.strtoupper('t')eaming up with expert profiler louse bergstein, a much more complicated investigation reveals itself as more and more seemingly related cases come to light'. '.strtoupper('a')s they realise they are dealing with a serial killer, shocking twists and discoveries that rock them to their core.a brilliant, smouldering nordic noir, darkness keeps viewers gripped as the mystery slowly unravels in ways that are impossible to predict and terrifying to watch.