In the blink of an eye, the terror begins.
A mission to investigate Halley's Comet discovers an even more fascinating phenomenon: an alien spacecraft! After a deadly confrontation, the aliens travel to Earth where their seductive leader begins a terrifying campaign to drain the life 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--being he's ever known. Will he be able to destroy the lovely vampiress...or will he become yet another victim of her fatal charm?