FBI agent Alex Cross is on vacation when he gets a call from the Director. An actress has been shot outside her home in Beverly Hills. Afterward, an editor for the Los Angeles Times receives an e-mail recounting the murder in shocking detail, signed Mary Smith. Her calling card - The authorities fear this is only the beginning. Mary Smith is targeting Hollywood stars and power brokers, and she is getting better every time. This case is like nothing Alex has ever confronted before. Could this be the plan of an obsessed fan or a spurned actor, or is it part of something much more terrifying? And how could a woman be capable of these vicious crimes?