I'd like to thank the random bookshop who posted a picture on FB of a display of "Horror novels NOT by Stephen King."  I looked up a couple of titles, wondering "who is Nat Cassidy?"  A very good writer, that's who!  I loved the terror and humanity of this book.  It's essentially about dealing with misfortune and desperately wanting to belong.  The apartment building, the Deptford, is a character and although I don't want to be responsible for "spoilers" let's just say I want to research further about estries and the Jewish Vampire lore.  One of the best trigger-warnings I've ever read, which mentions various things including anti-semitism, depression and various other themes, but ends with "There's also a character who's a real racist, sexist piece of shit".  Frank is, unfortunately, so very believable.