Hans and Paolo make an enormous spectacle out of cooking dinner for the ladies. But during dinner Paolo and Çanci get into an argument. Annie is also upset with Jopie and wants to spend the night at Koos & Mien's
Koos, Mien, Jopie & Annie are on holiday in Athens and Wiep is doing the housekeeping for Dr. Lydie. Hans proposes that he and Lydie also go to Athens for a doctors congress and Koos gets lost in the Greek hotel.
The night before Lydie & Hans leave for Athens, Buurman Buys keeps calling at the front door because he's locked himself out. Once the doctors pair is in Greece, they keep missing the Doppelsteen party by a hair.
Koos is having a difficult time finding work and finances in the Dobbelsteen household are getting a bit tight. Wiep gets a part-time job modeling swimwear and insists on taking Dr. John out to expensive restaurant 'La Cloche'.
Mien tricks Koos into help cleaning Lydie's mother's house on the eve of her return from Canada. When grandma does arrive, she does so carrying the wrong suitcase, which is filled to the brim with sexy underwear.
Mien gets to know Neighbor Buys a little better because of some wrongly delivered letters. She also misunderstands Dr. John's relationship to a patient and invites Koos over for lunch at the Doctor's for a big surprise.
Lydie and John have both noticed that drugs are missing from the medicine cabinet. The police advises to install an alarm and to keep this a secret from as many people as possible. Mien is burning with curiosity when Koos is asked to install the device and she's not allowed to know what it is.