Patrick Stewart

A mission to investigate Halley's Comet discovers an alien spacecraft! Following a deadly confrontation, the aliens arrive on Earth, where their seductive leader begins a terrifying campaign to drain the life-force of everyone she encounters. Her victims, in turn, continue the cycle, and soon the entire planet is in mortal danger. And when the mission's sole survivor sets out to destroy her, he comes face to face with the most charming, and horrifying...