Knock Knock

by Anders Roslund

Part of Ewert Grens, book 9

First published 2021

Criminal Inspector Ewert Grens cannot forget the five-year-old girl who watched her family die seventeen years ago. The brutal murders went unsolved. The child disappeared into witness protection. Now someone has broken into that same apartment where the slaughter occurred. Grens knows this means trouble. Someone wants to eliminate the only person who saw the killers. Meanwhile, across the city, former police informant Piet Hoffman discovers his family faces mortal danger. Someone is systematically killing weapons smugglers in the criminal underworld. Hoffman must identify this threat while protecting secrets that could destroy him. Both men begin separate investigations that slowly converge. They uncover a criminal conspiracy far more complex than either anticipated. The little girl who survived her family's murder holds the key to everything. But reaching her first requires Grens and Hoffman to navigate deadly territory where past crimes collide with present vengeance.

Genres: suspense, mystery, crime, thriller

Vibes: dark, emotional, suspenseful

Tropes: enemies-to-allies, past-crimes

Setting: Sweden

Period: 21st-century

447 pages · Kindle Edition · G.P. Putnam's Sons

Content warnings: murder, violence

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