Demonstone (1990) is a Horror, Thriller, Action, Crime, Fantasy film that follows two U.S. Marine investigators looking into a series of grisly murders in Manila discover that the crimes are tied to an amulet with a 400-year-old curse on it that has unleashed supernatural forces. Demonstone is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 4.1 out of 10 from 8 votes. Fans of horror movies may also want to explore similar titles below.