Watchers(1987)

Dean KoontzΓιώργος Μπαρουξής

They escape from a secret government: two mutant creatures, both changed utterly from the animals they once were. And no one who encounters them will ever be the same again:

A lonely widower; a ruthless assassin; a beautiful woman; a government agent.

Drawn together in a deadly hunt, all four are inexorably propelled towards a confrontation with an evil beyond human imagining.