J.B. Harold Murder Club is the first game in the J. B. Harold series of murder mystery graphic adventure games, which includes Manhattan Requiem (1987), Kiss of Murder (1988), D.C. Connection (1989), and Blue Chicago Blues (1995). J.B Harold Murder Club was the first, and for a long time the only, title of this Japanese computer game series to be released in the United States. After the series sold 20 million copies, an iOS version of the second game, Manhattan Requiem, was released in the Western world.
Source: Wikipedia, "J.B. Harold Murder Club", available under the CC-BY-SA License.