An FBI agent is killed by the mob after making off with five million in gold bars in a robbery gone bad. Agent Jerry Cotton is called in to bring the gang to justice and find out where his dead pal hid the missing gold.

A murder has taken place in the “Ostend” hotel in St. Pauli and Inspector Canisius is called to the crime scene. Mentally shaken, Canisius takes up the investigation. A wide variety of guests and couples were at the hotel that night, and anyone could be the perpetrator. Canisius experiences his most difficult case, in constant fear for his son.

Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas.

In a small Scottish village, horribly murdered bodies keep turning up. Suspicion falls upon the residents of a nearby castle that is haunted by a curse involving a killer cat.

Refusing an arranged marriage, young aristocrat Carmela is sent to a convent. Her arrival intensifies the power struggle between the debauched nun Elizabeth and the stern Mother Superior, as both are smitten by Carmela's beauty.

A poor orphan boy runs away from the children's home and sets up his lonely fatherly friend with his youth welfare officer. As a result, nothing stands in the way of our hero's adoption.

A teenager named Kurrat mysteriously disappears from a German boys' school. Then a teacher is found dead; the mystery grows.

The son of an Argentine chemist travels to Vienna, to solve the murder of his father. Step by step, he realizes that his father was internationally entangled in secret service machinations and chemical weapon sales, and ends up in mortal danger himself. Meanwhile, he also realizes that there is no connection between his father's murderess and those dubious activities. Her motive for killing him goes back much futher, to a court hearing during the Third Reich...

Pitt and Felix, two friends from school, meet again by chance in hospital years later. Both are looking forward to fatherhood. In order to shorten the grueling wait until the baby is born, they exchange lively memories of their school days. Some embarrassments are also brought up.