Based on the December Murder episode of Andor Fóti's The Underworld in the Trap; based on a true story: the cashier of a machine factory is stabbed and the leader of the night team is killed. A massive investigation is launched. Meanwhile, another worker is murdered in the factory.

After his owners abandon him in the woods, a puppy befriends a family of rabbits.

The penniless but handsome Count Zalavári chooses a rich girl from the countryside for her money. They don't get to marry because the butler catches him with the maid. He meets an American millionairess who gives him expensive jewelry as a gift. She is killed by her driver later that night. All suspicion falls on the Count.