Time Heals No Wounds by Hendrik Falkenberg (translated from the original German by Patrick Brown) is a good police procedural with a couple of twists.
The central character Hannes is a newly appointed detective working his first murder case with a quirky and crotchety older officer who is nearing retirement. Standard fare but nicely portrayed and the developing relationship combined with the insecurity of Hannes adds some personality to the novel. Lurking behind the murder is the shadow of the victim’s family and the relationship between their family chemicals business and the Nazi government. Any more and I might spoil it for you.
This is a good novel, the threads in the plot are absorbing even if they have been used by others many times before. I would read more from Falkenberg.