Xtro (1982)
An alien creature impregnates a woman who gives birth to a man who was abducted by aliens three years ago The man reconnects with his wife and son for a sinister purpose
The Haunting of Julia (1977)
After her daughters death, wealthy American homemaker Julia Lofting moves to London to restart her life All seems well until she is haunted by the ghosts of other children while mourning for her own
Xtro II: The Second Encounter (1990)
Military scientists discover an alternate dimension and, subsequently, aliens with an appetite for human flesh
Xtro 3: Watch the Skies (1995)
Marines travel to a deserted island to diffuse bombs, only to be terrorized by a deadly alien creature