The Shadow Murders

The Shadow Murders is the 9th, and penultimate, book in the Department Q series, and my favourite to date.
Department Q is the cold case department of the Copenhagen police force, headed up by Carl Mørck, who is ably assisted by Rose, Gordon and Assad.
The Shadow Murders is set in 2020, during the Covid19 pandemic, and Denmark is going into lockdown again, a few days before Christmas. Carl and his team are looking into a murder some thirty years old, but then a more recent murder occurs that appears to be connected.
What follows is the most complex investigation ever carried out by the team.
Meanwhile, Carl's past catches up with him. The final chapter ends on a cliffhanger, setting the scene for the next, and final book.
Engaging, thrilling, with a complex plot, The Shadow Murders is everything I want in a crime thriller.