In honor of his birthday, San Francisco banker Nicholas Van Orton, a financial genius and a cold-hearted loner, receives an unusual present from his younger brother, Conrad: a gift certificate to play a unique kind of game. In nary a nanosecond, Nicholas finds himself consumed by a dangerous set of ever-changing rules, unable to distinguish where the charade ends and reality begins.
Angela Bennett is a freelance software engineer who lives in a world of computer technology. When a cyber friend asks Bennett to debug a new game, she inadvertently becomes involved in a conspiracy that will soon turn her life upside down and make her the target of an assassination.