"A string of murders sucks the Oslo Detectives into a maelstrom of dark secrets in the latest from the master of Norwegian crime writing. Award-winning author K.O. Dahl has achieved international acclaim with his Oslo Detectives series featuring inspectors Frøhlich and Gunnarstranda. Now he presents the riveting fourth book in the series, combining rare psychological insight and elegant prose. Lethal Investments opens seven years prior to the case...

Suspended from duty, Detective Frolich is working as a private investigator, when his girlfriend's colleague asks for his help with a female asylum seeker, who the authorities are about to deport. She claims to have a sister in Norway, and fears that returning to her home country will mean instant death. Frolich quickly discovers the whereabouts of the young woman's sister, but things become increasingly complex when she denies having a sibling, and...