The Scorpio Illusion is a 1993 novel by Robert Ludlum. It is a mix of suspense, drama, action and thriller.
The novel "consciously draws on Freudian theory to lend depth to his treatment of the two dominant characters, a psychotic woman, driven by childhood traumas to emasculate dominant males and to destroy all symbols of male hierarchical power, and her opponent, a weakened, age-conscious male reaffirming his masculine strengths."
There is a factual error in the novel. Telephone conversations using scrambling are an important plot element in this novel. However, from about half-way through one side of the call is on a normal telephone. This is impossible; both phones must be equipped with compatible scrambler/descramblers.