Tappava yhteys was released in the year 1985。Tappava yhteys is also called as Lifeforce, Vampires from Outer Space, Rymdens vampyrer, Lifeforce - Die tödliche Bedrohung, Fuerza vital, Fuerza siniestra, Formacje zycia, Étoile du mal, Space Vampires。

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.

Tappava yhteys actors and actresses include Aubrey Morris, Mathilda May, Steve Railsback。