Liz Mistry is a pretty cool name for an author, but this book description wins this week's 'unoriginal' award. "As DS Nikki Parekh and DC Sajid Malik investigate three seemingly unrelated murders, they struggle to find answers… until Nikki receives a series of taunting notes. Are all three crimes united by Nikki’s own traumatic past!" How many more cookie-cutter novels are we going to suffer, where the investigator has a past which is traumatic, or shady, or murky, or otherwise besmirched? Barf.