While Saint X is marketed as a thriller, it really seemed more literary, with themes of privilege, trauma, family, and how one incident can effect many lives. Claire was seven when her sister Alison went missing from a Caribbean resort. Years later, Claire encounters one of the men that was accused of murdering her sister. She becomes slightly obsessed with his life. Most of the book takes place in New York City, not in the Caribbean. While this book moved slowly, it was not boring. It was well written and meaningful. Claire was understandably traumatized by what occurred in her past and it was interesting to read about what happened as well as the effects of the incident from various points of view.