Lydie is looking for a larger house. Mien suggests buying the one next door and breaking away some of the connecting walls. Gert Jan becomes exited about renting out the ground floor of the second house and starting a fitness center.
Gert Jan & Pien check a fitness and body building center to see how much it would cost to set one up of their own. This leaves Gert Jan aching all over during the night. Both Lydie and Hans have forgotten the date on which they are to sign for their impending wedding.
Dr. Lydie is having a terrible day. Koos is refurbishing her waiting room and all the patients are relocated to the dining room. When she's out visiting patients, she gets a flat tire and to top it all, Hans has invited a Spanish colleague over for diner.
Lydie is disappointed that Nancy can't come to the wedding, but Hans has something up his sleeve. Mien insists that Lydie buys something new to wear during the ceremony and that they go out shopping together.
It's Lydie and Hans's wedding day. Although they only want a small ceremony followed by a honeymoon in Kenya (to visit Lydie's daughter Nancy) they still end up with two cakes and a big surprise from Gert Jan and Pien.
Dr. Lydie offers unemployed children's doctor Thea a job in her practice. Koos buys an old van from Jopie. A man arrives to demonstrate a new revolutionary knife, but Lydie has forgotten to arrange an audience for him.
Mien goes shopping with her Turkish friend Hülya. Hans's sister Çanci is coming to stay and Lydie, Gert Jan & Koos all offer to provide her a place to stay. But Pien becomes jealous and Mien also objects.
Hans is going away for a week and Gert Jan & Pien are sleeping in Leiden. Lydie has a hangover from the going away dinner and has lost her keys. Koos and Mien are nervous about burglaries and insist on a new lock and keys.
Pregnant Pien is feeling bored and wants to teach Aerobics classes, but overprotective Gert Jan forbids it. When Gert Jan tells Pien to ask his mother for advice, Lydie wisely insists she goes for a second opinion.