Bátky János a 20th century intellectual studies the secret of the Rosicrucians in London libraries during the day and in the evening takes pleasure in the "decent" everyday joys offered by the fair sex. He gets involved in the wildest ghost-story in the mysterious Wales castle of the Pendragons, where Earl of Gwynnedd from the 18th century is making experiments to prove his ancestors' slogan, "the resurrection of the body". In the meantime St. Claire, a beautiful, demonic woman and her companions try to kill him for the huge legacy.
The family travels to Zebegény for their holiday, and the following day the seventeen-year-old Vera also leaves for Lake Balaton to pick peaches in a voluntary camp there. Her boyfriend, Gyuri, goes to a film shooting. Gyuri would like to make the best of the day in the absence of parents, but Vera refuses him. She becomes jealous at once, however, when she discovers Gyuri's previous girlfriend in the shooting team.
A young man spends his last three nights with his lover before his army regiment is ordered to war. When he deserts his unit to return to her side, he discovers the woman he loves is gone, and he is interrogated by the police when he learns his lover is a communist agent. The two finally are reunited at the police station where the embarrassed man denies ever knowing the accused woman.
