Normal, by Graeme Cameron.
A first-person, serial-killer novel by an English author, filled with classic British dry, sardonic humour, that I received as a gift for Christmas. It's different, written in a unique style and I'm loving it, particularly as in some parts I'm left guessing as to whether he intends for the reader to take the scene seriously. Or if, instead, he's deliberately satirising events and/or tropes in other mainstream fiction.
As the synopsis had a few parallels with a story I'm writing, I recommended it to my partner before I'd started it myself. Who ordered the book immediately, received the hard copy the next day - If only Australia Post was that efficient! - and finished it the day after, before me. Now I'm trying to avoid spoilers!