Computer hackers demand ransom when they break into a computer system with a powerful and apparently unstoppable virus. A mysterious young woman quickly saves the business. She requests a meeting with the company's CEO and he ends up getting more than he bargained for. Lynn turns out to be a highly skilled assassin, who knocks off the CEO with the help of her younger sister Sue. Hong, a brilliant forensics expert, is hot on their trail, and the creeps who hired the girls decide to cover their tracks by killing them.