How do you like your crime? Hard-boiled, cosy, police procedural? The list seems fairly endless and, after a while, one cosy crime novel or psychological thriller can seem pretty much like another. This isn’t to say that there aren’t good books out there but, well, after a hard week’s bookselling I start to get my franchises a bit mixed up. And this means I’m always glad to see a book which has something a bit more distinctive than usual about it. Ariana Franklin’s medieval female atheist pathologist perhaps, or A.A. Dhand’s Bradford-based Harry Virdee; or a distinctive setting like Bryant & May’s Peculiar Crimes Unit. But how about a crime novel where even the killer may not be aware that they committed a crime?
The world in which Yesterday is set is our world. There are tabloid newspapers, reality tv, general elections and iPhones. All people, however, are one of two types – Monos, who can only remember the previous 24 hours, and Duos, whose memories span a whole 48 hours. Each night people fill in their diary (by law a private document, except in the case of serious crimes like murder) and each morning they learn the ‘facts’ of the day before. Society is split – Monos are barred from many careers and Duos are treated as a superior group – but academics are satisfied that, if people could remember everything they would divide themselves some other way. By nationality, skin colour or religion, perhaps… Against this setting Mark, a best-selling Duo novelist with a promising new career in politics looming, and his Mono wife are an unusual couple. They are being seen as the poster boy and girl for the government’s new policy of encouraging mixed marriages until the body of a woman, who turns out to be Mark’s mistress, is found and the police have only a short time to find the killer.
This was an interesting psychological thriller with a novel twist. Everyone has secrets – Mark, his wife Clare, his dead lover and the detective in charge of the case – and they are revealed as each of the four takes it in turns to tell their side of the story. But when facts are what you memorise from the words you write in your diary each day how do you find the truth?