Unmarried teenage lovers turn to desperate measures after their clandestine tryst results in an unplanned pregnancy.
In San Francisco, a psychopathic gangster and his mentor retrieve heroin packages carried by unsuspecting travelers.
Mitch Wayne is a geologist working for the Hadleys, an oil-rich Texas family. While the patriarch, Jasper, works hard to establish the family business, his irresponsible son, Kyle, is an alcoholic playboy, and his daughter, Marylee, is the town tramp. Mitch harbors a secret love for Kyle's unsatisfied wife, Lucy -- a fact that leaves him exposed when the jealous Marylee accuses him of murder.
When a toy manufacturer feels ignored and unappreciated by his wife and children, he begins to rekindle a past love when a former employee comes back into his life.
A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.