Elena and Marcos live in a guesthouse. Their serious financial difficulties force them to resort to the help of Mrs. Jarque, an aunt of Elena who humiliates Marcos constantly. Marcos dreams that he kills Mrs. Jarque, and she appears dead.

Rich Spanish landowner Alvaro is torn between his wife Elvira and two other women in his life. He's also worried about the fact that both his father and grandfather were murdered by Spanish revolutionaries in the house he's inherited.

After serving their sentence, three prisoners, a doctor, a civil servant and a thief, leave jail. During the train trip they do together to return home, they analyze their respective lives. The doctor has been required to perform an operation on a child abandoned by his father, a millionaire.

When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons