Anybody who's ever been stalked, and that's a huge number of us apparently, will find this novel fascinating. It's a very well written, interestingly constructed, story that examines the close relationship between love and hate. Through the alternating first person narratives we get close to Alex and Siobhan, closer than we feel comfortable with in many places, but all the more compelling because of that. Do we get any nearer to understanding stalkers? Yes, I think we do. Driven, as they are, by Cupid's arrow, which makes all of us behave in ways we wish we never had at times, I found myself having more empathy for Alex and Siobhan than maybe a dedicated 'stalker' in real life would ever warrant, enabling me to get under their skins and think more deeply about this phenomenon. Quite an achievement and highly recommended.