Clock Tower 3 is a survival horror video game co-developed by Capcom and Sunsoft for the PlayStation 2. Released in 2002, it is the fourth installment in the Clock Tower series, and the first and only video game directed by Japanese film director Kinji Fukasaku. The plot and characters have very little relation with the previous Clock Tower games. The story follows 14-year-old Alyssa Hamilton who is part of a family lineage of female warriors who travel through time to defeat evil spirits. Alyssa travels from her time in 2003 London to the 1940s and 1960s in order to defeat these "Entities" and bring peace to troubled souls.

The story revolves around a girl named Alyssa Hamilton who seems to "time travel" to the past by entering realms. In these realms, she is hunted by psychopathic and sadistic serial killers. Along the way, she discovers dark truths about her familial history, and brings peace to tormented victims beyond the grave. The game is set in 2003 in London, England. During the game, Alyssa will explore a mansion, ruined city, concert hall, underground factory and sewers, cemetery, abandoned hospital, and a castle with a clock tower.