The Sign of Scorpio(1974)

The Sign of Scorpio is a mystery thriller that traps twelve guests on a private island during the launch of a revolutionary horoscope computer. When the astrologer host's welcome party turns deadly, a murder sets off a chain of killings that the computer predicts with eerie accuracy. Stranded and unable to escape, the remaining guests must uncover who is orchestrating the deaths before the machine's prophecies claim them all. As suspicion spreads and the body count rises, each survivor becomes both potential victim and suspect. The film weaves astrology and technology into a locked-room whodunit where fate itself seems to be the killer.