Crime in Holland (Inspector Maigret #8), A by Georges Simenon; 1931/2014. Softcover.

When a French professor visiting the quiet, Dutch coastal town of Delfzjil is accused of murder, Maigret is sent to investigate. The community seem happy to blame an unknown outsider, but there are people much closer to home who seem to know much more than they're letting on: Beetje, the dissatisfied daughter of a local farmer, Any van Elst, sister-in-law of the deceased, and, of course, a notorious local crook.