Back

Feature film — 1971

Alien Terror (1971)

3.61h 30mHorror — Science Fiction

Near the end of the 19th century, Prof. John Mayer and his assistant, the scientist Dr. Isabel Reed, accidentally invent a powerful ray. An alien travels to Earth to destroy the machine since it would be a threat to the universe. He initially possesses the mind of Thomas, a sex maniac and serial killer, to get close to Mayer during the demonstration of the machine to scientists and the military. Mayer's niece, Laura, meets an acquaintance of her uncle, the chemist Dr. Paul Rosten, and Mayer invites him to join the research. When Thomas gets close to Mayer, the alien also possesses his mind in order to destroy the device and his notes. Meanwhile, Thomas is not able to control his murderous impulses and attacks several women with a straight razor.

Watch now

The note

Stay for the details.

A high-signal pick with 26 votes.

Azteca Films / Filmica Vergara S.A. / Parasol Group / Columbia Pictures

Community reviews

What viewers are saying

Sign in to leave a review for everyone to see. Reviews are tied to your account so the community can trust what's shared.

Loading reviews…

Director: Jack Hill

On screen

Cast & crew

Boris Karloff as Prof. John Mayer

Boris Karloff

Prof. John Mayer

Enrique Guzmán as Dr. Paul Rosten

Enrique Guzmán

Dr. Paul Rosten

Christa Linder as Laura

Christa Linder

Laura

Maura Monti as Dr. Isabel Reed

Maura Monti

Dr. Isabel Reed

Yerye Beirute as Thomas

Yerye Beirute

Thomas

T

Tere Valez

Nancy

G

Griselda Mejía

Prostitute

S

Sergio Kleiner

Alien

M

Mariela Flores

Deaf-mute victim

Tito Novaro as Gen. Nord

Tito Novaro

Gen. Nord

S

Sergio Virel

Villager

Nathanael León as Villager

Nathanael León

Villager

Similar titles

More like this