Het hoofd koel houden
- Episode aired Oct 1, 1966
![Hetty Blok, Piet Hendriks, Leen Jongewaard, John Kuipers, Carla Lipp, and Wim Sonneveld in Ja zuster, nee zuster (1966)](https://m.media-amazon.com/images/M/MV5BNTc5Nzg1NzAtY2FmZS00YTgzLThhZDYtNWI1ZTU3MDkxODI2XkEyXkFqcGdeQXVyNjY5Mzc0MTU@._V1_QL75_UX190_CR0,29,190,281_.jpg)
Boordevol intends to present evidence of the engineer's explosive experiments to a safety director at a dinner party. Therefore, Klivia and the others from the rest home infiltrate the party... Read allBoordevol intends to present evidence of the engineer's explosive experiments to a safety director at a dinner party. Therefore, Klivia and the others from the rest home infiltrate the party disguised as caterers and a famous opera singer.Boordevol intends to present evidence of the engineer's explosive experiments to a safety director at a dinner party. Therefore, Klivia and the others from the rest home infiltrate the party disguised as caterers and a famous opera singer.