Don Stern

Sex-hungry teens are kidnapped by auto mechanics, who take them to a rural hospital run by aliens who need their blood as the key to their own longevity.

A crew of scientists arrives on a far, cold planet to examine archaic artifacts of unknown origin. They discover that their German enemies already have a ship there. When they seek their help after a failed landing, they only find the Germans’ bodies, obviously slaughtered by one of the archaic creatures, awoken to new life. Now the alien is after them.

An escaped mental patient steals a station wagon and makes his way to the Bradleys' Thanksgiving celebration, where he plans to make them a little less thankful...