Cass Neary is spiralling into self destruction, fueled by booze and drugs, her beloved camera gone, thieving opportunistically, on the run and desperately searching for long-lost recently-found Quinn. A chance encounter introduces her to an incredbly rare book about to be sold for a fabulous amount, but the sale goes wrong when the buyer is murdered and the book is stolen. Seeing a chance to change her fortunes, she hunts the book, but there's a tech millionaire who wants it for an app that's supposed to cure traumatic memories but instead seems to trigger them and London is filled with neo-Nazis and whote supremacists - as tensions rise and danger threatens she becomes increasingly strung-out and desperate as much a danger to herself as the mysterious killer. 

I love these books, Hand manages to make Cass both an anti-heroine whose underlying vulnerability keeps the reader enthralled and invested in her finding some kind of life or redemption.