The secret from the title is the lost recipe for shiny Delft pottery, that Jan Vogel is desperately trying to rediscover. For his attempts he needs platinum, but the funds run out because the factory owner Van Haaften has lost his money in stock-speculations. Luckily for Jan, he finds a farewell letter in the park, including a large sum of money. Meanwhile, the owner's son Leo confesses his love for Jan's daughter Annie, but Van Haaften forbids their marriage.
Maurits Binger
Director
Annie Bos
Annie Vogel
Lily Bouwmeester
Lilly Vogel
Jan van Dommelen
Jan Vogel
Louis Chrispijn Sr.
Van Haaften
Willem van der Veer
Willem Berg
Frederick Vogeding
Leo van Haaften
Paula de Waart
Mevrouw Van Haaften
Minny Erfmann
Minny van Haaften
Fred Homann
What Maisie Knew71%
Adopt a Highway66%
Salomé61%
The Kindness of Strangers63%
Skin63%
Lorelei59%
La joven69%
The Nest60%
Herself67%
Won't Back Down61%
Kisses71%
Gracie61%
Imperial Dreams65%
All Together Now67%
Most72%
Come Sunday58%
Charm City Kings78%
The Unforgivable74%
Cardboard Boxer63%
Starving in Suburbia65%
