Nope, didn't care much for this. Not denying that Westlake knows his way around a typewriter, there are some great turns of phrase here and "hard-boiled" feels like a lazy way to telegraph just how hard this goes. But honestly, Parker just annoys me. A completely amoral killer with no other redeeming quality than getting revenge on someone who's just as awful as he is except more of a coward, and so ludicrously good at what he does that it ends up reading like wish fulfillment even without all the fairly skeevy "all women want him because they think he'll kill them" stuff. There's no tension here, no reason to believe Parker won't do exactly what he sets out to do. No humour, no self-awareness. I didn't like Ramsay Bolton either.