Embryo follows Kevin and his girlfriend Evelyn, campers who are abducted by aliens who impregnate the latter. As the entity inside her starts growing, Evelyn discovers her cravings can only be satsisfied by human flesh and blood. Kevin and his girlfriend Evelyn are camping in the woods when she is abducted and impregnated by otherworldly beings. As the entity within her begins to grow, Evelyn discovers that her cravings can only be satisfied by human flesh and blood.
