I think this was originally written many years ago, & just translated into English. If so, I'm sure all this stuff about Alan Turing's life & death was fascinating to readers, but for a t just rehashed a lot of stuff I already knew. & the original character, the constable investigating his suicide, was more or less a cipher, & ended up being a lot less interesting than I thought at the beginning. The ending was also strangely abrupt. Ah well.