After a Mars probe explodes, the scientist (Kent Taylor) responsible for the project returns home to his estranged family for Christmas. Unbeknownst to him, Martian invaders (actually clones of him and his family) confuse everybody and kill whoever stands in their way. In the end the family is destroyed (turned to ashes) and replaced by the clones! Minimal, low budget sci-fi film that takes place mostly indoors with hardly any special effects. Though it’s more of a domestic drama than a sci-fi movie. Co-starring Marie Windsor.