There was so much to love about this book: Gilda is one of the most interesting narrators I've encountered in a long time, and the way that Emily Austin portrays her slow unraveling is genuinely disturbing. I laughed out loud frequently on the train at the oddly dark humour, and I thought that the inclusion of Grace was a real masterclass in making a character seem completely believable and real, even though she only ever appeared in epistolary form. I did think that the book resolved itself much too quickly; it all comes to a head and comes good in about 5 pages at the end, which is a shame considering how well-paced the rest of it was. Still, a book I know I'll be thinking about for a long time.