Enquiries into the murder of a young woman take the private investigator Peter Keller to the idyllic village of Schwant in Emmental. But, the more entangled Keller gets in the treads of the apparently clearcut case of sex murder, the more obvious the flaws in the village idyll become. Keller's quest turns into a deadly mission.

Fifty years after graduating from school, Senta von Meissen invites eight former school friends to a class reunion at her castle. The table is set for ten people. One place remains empty: Teddy, the hostess's former school sweetheart, died in an accident on her graduation trip to the Rhine Falls. But was it really an accident? The evening turns into a murderous act of revenge.

A cruel dictator rules a Latin American state. Corruption, brutality and exploitation are present every day. A few people begin to organise resistance. Under the leader "El Leopardo" a small group of guerillas fights against the violent government.

Four kids - Eugen, Wrigley, Bäschteli and Eduard - leave for an adventure around Switzerland, searching for the fabulous treasure of Titicaca Lake, discovered by Fritzli Bühler.

Diamond expert Ronnie discovers a real gem: Ginnie. Struck by Cupid's arrow, he follows the pretty chance acquaintance to Belgium. As a front man for Ginnie's boss Demarre, he is supposed to pull off a deal involving fake diamonds. And suddenly he gets caught up in a dangerous game of confusion. In addition to gemstone friends, gangster bosses, contract killers and a kidnapped diplomat also get involved.

Josef Nötzli has swapped his job as an accountant for a chicken farm in Switzerland. He wants to be just as successful as his twin brother John, who he believes runs the Aurora Hotel in Berlin. In reality, however, John is one of the biggest underworld bosses, and the "Aurora" is Berlin's most famous brothel. When John suddenly dies in Bangkok, Max, John's partner, wants to prevent anyone in Berlin from finding out about John's death at all costs. First, with Josef's help, he has to get the black money from the bank. Under the pretext of having to accept the inheritance, Max brings Josef to Berlin. Once there, of course, everyone believes that Josef is John, the feared underworld boss, and so a maelstrom of confusion ensues.