The Dutch singers and cabaret artists Adèle Bloemendaal and Jenny Arean pay a musical tribute to the city of their births, Amsterdam.

A rich Frisian farmer has been murdered in Amsterdam and police duo Grijpstra & De Gier are sent to investigate. Adjutant Grijpstra has problems at home again and is happy to leave for Friesland to investigate the murder. Sgt. De Gier finds the Frisian Hylke much more interesting than the murder case. In Leeuwarden there is a real Chinese war and a brutal robbery at the cattle market. Suddenly there is that friendly rattling, asthmatic rat who provides an unexpected solution.

Accidentally still in possession of his best friend's pocket knife after they move all the way to a different city, a young boy sets out to return it.

According to an ancient Indian tale a giant monster embryo residing in a crystal vase is predetermined to fertilize a blue-eyed woman. She will give birth to something evil to unleash horror and destruction upon human kind. Ugly septuplet brothers reproduced within the framework of mysterious genetic experiments terrorize a young innocent girl who seems to be chosen for the sinister predestination.

A mysterious diver hiding in Amsterdam's canal system embarks on a rampage of gruesome murders, terrifying city officials and leaving few clues for the city's best detective, who doesn't suspect that both his new girlfriend and twelve-year-old daughter may be closer than he is to finding the killer.