Synopsis by Hal Erickson
This is not the same film as the gosh-awful 1970 Al Adamson epic with J.Carroll Naish and Lon Chaney Jr. Originally titled Assignment Terror, this German/Spanish/Italian production stars Michael Rennie as an extraterrestrial invader. Unlike the pacifistic Klaatu, his character in The Day the Earth Stood Still, Rennie is a warmonger this time out, hoping to destroy the earth. To that end, he harnesses the awesome powers of Dracula, Frankenstein's monster et. al. Rennie is foiled (curses!) by a conscience-stricken werewolf.
alien [not human], destruction, Dracula, Frankenstein, invasion, vampire, werewolf