About as much of a 'thriller' as Eyes Wide Shut
I have no idea why anyone would market this film as a suspense-thriller, other than a shot of a burned corpse and a gun occasionally periodically making its way in and out of a kitchen drawer. I have to laugh at the promo shot of Bellamy hunkering along with his pistol drawn low like his is out to settle scores a la Harry Brown.
In fact, the film plods along deliberately through the crime-thriller development without much sense of danger; its a mere a vehicle for the audience to observe what kind of people the inspector, his wife, and the brother are, and the lack of crime-stopper motivation shows in everything from the cutting to the score.
And then the crime-thriller storyline wraps itself up with a nice little bow, and we have a predictable "oh, my" moment. For those reasons it reminded me very much of Eyes Wide Shut, which was perhaps a film too full of itself, but frankly I liked it better than Bellamy, which was a little too much like watching Masterpiece Theater.