Rising Sun (movie, 1993)

When a prostitute is found dead in a Los Angeles skyscraper occupied by a large Japanese corporation, detectives John Conner and Web Smith are called in to investigate. Although Conner 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.