Having just returned from a mission to Mars, Commander Ross isn’t exactly himself. He’s slowly becoming a terrifying alien entity with one goal — to procreate with human women! When countless women suffer gruesome deaths after bearing half-alien offspring, scientist Laura Baker and hired assassin Press Lennox use Eve, a more tempered alien clone, to find Ross and his brood. Before long Eve escapes to mate with Ross.

A picture perfect middle class family is shocked when they find out that one of their neighbors is receiving obscene phone calls. The mom takes slights against her family very personally, and it turns out she is indeed the one harassing the neighbor. As other slights befall her beloved family, the body count begins to increase.