Her Fearful Symmetry - Audrey Niffenegger

Set mostly in a flat overlooking London's Highgate Cemetery, this is a rather unusual ghost story. Elspeth Noblin leaves her spacious flat to her twin nieces, Julia and Valentina, who have never met their aunt. She stipulates that they must live there for a year before deciding whether to keep the flat or not. Upstairs lives Martin and his wife Marijke, he's an OCD crossword compiler and she works for the BBC, until one day, shortly after Elspeth's death, she leaves him. Downstairs lives Elspeth's lover Robert, a man trapped in his despair and sadness until he meets the twins and becomes entwined in their lives.
The twins are identical, symmetrical, Valentina is an exact mirror image of Julia, with her heart on the right. Seen as the weaker twin, she finds the bonds with her sister suffocating, but how far will she go to escape them?

I really liked this book, I wasn't that keen on The Time Traveller's Wife, Niffenegger's previous book, but I enjoyed the dark, Gothic-y tone of this one. Niffenegger spent time as a tour guide in Highgate Cemetery, and the little details about its inhabitants, which Robert is researching for his dissertation, add a sense of history to the novel.