J.T. Morrow. Prophet (1988) 250 pp. [pbo]
Publishers description: When his ex-lover is thrust into a world of international espionage and computer tampering, Jason Prophet decides to investigate. He had been asked by his one-time lover, private detective Lynn McColl, for help on a simple case involving computer research. Now Lynn is missing—and Prophet realizes that beneath this simple case lies a deadly world of intrigue, cocaine and murder! As Prophet digs deeper, it becomes clear that the Soviet Consulate in San Francisco is involved—and that Lynn is in grave danger. Working against the clock, Prophet forges and fumbles his way through false clues and secret computer programs in a desperate attempt to solve the case—and save his ex-girlfriend.
Setting: San Francisco