The story of and Falling, fly revolves around Olivia, a fallen angel/vampire who only feeds on desire, and Dominic, a reborn/neuroscientist whose goal is to create a medicine for mental disorders (such as phobia, trauma, etc.) and their quest o find the reason why they exist. This book introduces the idea of vampirism as a type of trauma-inflicted mental disorder that can be cured by erasing that specific experience or memory in the brain.I love the fusion of science, mythology and folklore. I also love the way it was written, very artistic and poetic, and the comeback are really witty, well-thought out. The only thing that I don’t understand (and I’m still contemplating about it) is how Olivia and Dominic became invisible, how their scent was gone instantly and even the smell of blood from Dominic’s neck is untraceable.I really am confused when I’ve read that part. It’s like I don’t know what to believe anymore. Dominic disprove that Olivia and the other are real vampires with hard facts and evidences and then suddenly after having sex, she became invisible, have a transparent wings and fly up in the sky. What happened? Did I miss something here?I finished the book still confused. Reading it is like riding a roller coaster, it has ups and downs and very wobbly but still I enjoyed the ride.