The 7 Deaths of Evelyn Hardcastle, by Stuart Turton.

A sensationally good debut for both the story and the writing. The author doesn’t drop a word or miss a beat. The protagonist comes to, running through the woods, witnessing what he thinks is a murder, on the approach to the nightmare of Blackheath House. He has just eight “hosts” in which to inhabit, to solve a murder and free himself from the never-ending loop on the edge of insanity. A real stand out for me; one that requires focus.