"Lifeforce" is a 1985 science fiction horror film directed by Tobe Hooper, based on Colin Wilson's novel "The Space Vampires." The story unfolds as a space shuttle on a mission to explore Halley's Comet discovers a mysterious alien life form. Upon returning to Earth, the crew inadvertently brings back three stunningly beautiful extraterrestrial beings who possess the ability to drain the life force from humans.

As chaos ensues, the aliens wreak havoc in London, leaving a trail of death and destruction in their wake. A team of scientists and military personnel, led by the determined Colonel Tom Carlsen, must race against time to stop the alien threat. The film explores themes of seduction, survival, and the struggle between humanity and an otherworldly force. With its blend of horror, sci-fi, and eroticism, "Lifeforce" delivers a unique cinematic experience that challenges the boundaries of both genres.