I did not want to write a serial killer novel. There's so many of them out there, and I don't really get stoked by that kind of thing anyway. But I started digging a little bit and reading about the cops who had worked [a real life case] and how it haunted them past the end of their careers.
Superstition, ghosts, curses, and a poignant but troubled mother-daughter relationship highlight this Amy Tan novel, a story that takes place in early 20th century China and modern-day California.