Japan only. English ROM patch available at:
http://agtp.romhack.net/clocktow.html

This is the original Clock Tower game by Human Entertainment. You control young Jennifer, an orphan who finds herself trapped in a mansion that is home to a family of sadistic maniacs. One of the residents, Bobby, is an excellent example of why all parents should keep incredibly huge scissors away from their insane nine-year old children.

Clock Tower uses a point and click interface similar to old Sierra games. The game is fairly short but offers nine possible endings, and has been designed so that there are several unique paths through the game. Extremely well executed and very highly recommended.