After the mysterious disappearance of his mentor, hard-boiled FBI agent Steve "Ace" Miller searches for the truth and inadvertently becomes obsessed with solving a case that involves several unusual murders. While probing for answers in a dark world of sex clubs and fantasy parlors, he encounters the seductively clever Donna Moran. This stunningly beautiful urban Amazon's erotic charm and technical brilliance quickly lure Steve down a dark path of betrayal, computer espionage, and sexual insanity. Furthermore, Steve's personal life also starts to quickly unravel when he discovers that Donna may be the mysterious killer whose kinky rampages extend far beyond the recent series of local gangland murders. Finally, after being unjustly implicated in one of her latest crimes, Steve must take desperate measures to locate Donna, clear his name, and retrieve a computer disk of stolen top-secret ? les before a shocking truth is revealed that could have international repercussions.