While working in a diamond mine located in the desert, Bo and Ingrid, two siblings who survived a massacre as children, make a surprising discovery.

A group of cave explorers are confronted in an underground cavern by a mysterious living rock. Little do they know that it bears home to deadly, flesh-eating creatures, intent on wiping out the entire human population. An ultra low-budget, unofficial and unauthorized sequel to the 1979 film Alien, although the plot has little connection to the original film.

It's the roaring twenties in Berlin. The Tigress, a gorgeous, wild, and very independent street walker, falls for a handsome grifter. When one of her lovers gets jealous, she betrays him and has to skip town. The grifter reveals he has what it takes to move in upper class circles and suggests they flee to Carlsbad, a spa in Czechoslovakia. Does he love her or is he only using her? Is the Tigress madly in love with him or does she want to satisfy her vanity and drop him once he falls for her? The ancient cat and mouse game between a man and a woman unfolds amidst sensual seduction, the scheme of robbing a rich Texan and the jilted lover arriving from Berlin, gun drawn.