Detective thriller about a killer loose in the crowds. The film follows a sniper on his rounds looking for victims, while a police inspector, with few clues in hand, has to figure out the motive for the killings as well as who the psychopath is and where he might strike next. He uncovers that the mentally deranged sniper can't stand seeing people happy together in public places.

During his vacation in Poland, a retired American policeman cracks down on drug dealers.

Two youngsters vacationing at the Black Sea sneak onto a mysterious ship and spy the peculiar activities of a treasure-seeking crew. They are discovered and imprisoned as the ship heads for an uncharted island. Their parents put together an expedition and after numerous adventures the treasure hunters are apprehended and the mystery of a secret cove is solved.

Mr. Samochodzik with his friend Joanna and her son Piotr are going on vacation to a mountain village. Peter dreams of adventures, and his imagination is focused on discovering weirdness. Here he eavesdrops on a conversation which shows that a man and a woman are planning a murder. It turns out, however, that the mysterious man is the author of crime novels Mr. Arizona, who uses the advice and ideas of his servant Sophia. The mistake is explained, Mr. Samochodzik, Joanna and Piotr gain new friends and thanks to them they meet the Italian film crew making the film in this area. Unfortunately, a real misfortune falls on the filmmakers: the main role star - beautiful Diana - mysteriously disappears. There is a break in shooting. The producer of the film seems distraught, but Mr. Arizona suspects that the actress's disappearance is an advertising gimmick. The friends start investigating on their own.

Three old men get caught by the police during the bank heist. The problem is, that they didn't steal anything.

A well-regarded engineer in a big enterprise is hounded by trumped up attacks on his integrity when he delves too deeply into how bonuses are handled by the management. He gets into an argument with the guard, is arrested and subsequently fired. An old friend, a journalist, tries to sort things out but the victim's stubbornness and past problems with his wife lead to lossess by both.