What a disappointment! If it had been his first book and then followed by the best selling The Silent Patient it would be the right order. However I feel this was a regression to amateur status. As he admits in the Acknowledgements, he has nostalgia for whodunits, mysteries and detective novels from reading these in his teens. And this was clear from early on in the book - it felt like a teenage whodunit with more gore. Although it had a twist at the end, there was little substance to bring it to that point and I skimmed over many pages. I'll definitely pay more attention to the reviews of his next book before reading.