Bob and Greta De Jaegher are happily married for 40 years. They can look back on a rich and fulfilled life. Their 2 sons Steve and Carl have a successful life as well. Steve is a talented and recognized film-director and Carl is a promising cook. Steve's wife Billie wrote a bestseller about happiness and wants to start a family with her husband. Brother-in-law Rik, who works at the zoo, tries to pick up his life with his kids, after his wife died two years ago. To mark their 40th wedding anniversary, Bob and Greta organize a family weekend. They want to announce something very important. Their new plans are a sure hit for the family De Jaegher, but that's not the only thing - What had to be a cheerful gathering of the family, turns out to be something nobody expected.
Keet & Koen are street artists and entertainers in a theme park. In this family movie their mission is to search for missing clown Bassie and acrobat Adriaan. Bassie & Adriaan are very well known among the young and old and have received an award for their great merit as people rescuers. Their eternal enemy, the old Baron, wants to prevent this of course and he commands his cousin 'Jonkheer' to abduct Bassie & Adriaan. Keet & Koen prove to be full successors to Bassie & Adriaan as they proceed into the exciting search for the famous duo that has been kidnapped.
A famous writer is violated in a sex-movie-theatre. He had a date with Roos, a young student who works also as a prostitute. Quickly it becomes clear that more students are active in the prostitution. Enough reason for Hannah and her team to go undercover in club Sin City, a port for everyone who avoids the daylight and for girls who pick up their customers. When Hannah and her team investigate that the owner of both the sex-theatre as Sin City are Roos' uncle, the whole case takes a personal turn. In the first place for Hannah, because she knows as no-one else how heavy family secrets can weigh....
