Crime fiction built around a recurring detective is a long game, and Andrew Raymond is playing it. The DCI Lomond Crime Thrillers give him a fixed centre to work from: a lead officer whose habits and history accumulate from book to book, and a caseload that can go wherever the writing wants to take it.
A series like that rewards a particular discipline. Each case has to stand alone for the newcomer while adding something for the reader who has been there since the start, and the pace has to stay tight without the plotting turning mechanical. That is the tradition Raymond writes in, and the compact running time here suggests an author who prefers momentum to sprawl.