A space shuttle mission investigating Halley's Comet brings back a malevolent race of space vampires who transform most of London's population into zombies. The only survivor of the expedition and British authorities attempt to capture a mysterious but beautiful alien woman who appears responsible. Lifeforce 1985 IMDB Lifeforce 1985 Box Office Mojo Lifeforce 1985 movie online Lifeforce 1985 full d.o.w.n.l.o.a.d