The author of this brand new London-based thriller is honest enough to tell readers — in the Acknowledgments — of her debt to the book Double Indemnity by James M. Cain, which was made into a classic film starring Barbara Stanwyck and Fred MacMurray. Just as that original story featured a cast of characters none of whom was free from guilt, all of whom made awful moral choices, the same can be said of this book. Except that Louise Candlish ramps the volume up to 11. I had to double check that the book was written by a woman, as the main female character is so awfully, murderously vampish. But to be fair the two male leads — one of whom narrates the story — are really no better. On the whole, an engrossing tale that I wouldn’t wish to spoil, so let’s just say the title is an odd choice.