As the result of a head injury, brilliant computer scientist Harry Benson begins to experience violent seizures. In an attempt to control the seizures, Benson undergoes a new surgical procedure in which a microcomputer is inserted into his brain. The procedure is not entirely successful.
When a prostitute is found dead in a Los Angeles skyscraper occupied by a large Japanese corporation, detectives John Connor and Web Smith are called in to investigate. Although Connor has previous experience working in Japan, cultural differences make their progress difficult until a security disc showing the murder turns up. Close scrutiny proves the disc has been doctored, and the detectives realize they're dealing with a cover-up as well.