

Bassie & Adriaan: The Secret of the Key
1978, Dutch. Directed by Aad van Toor & Guus Verstraete jr..
Bassie and Adriaan take a well-earned holiday but find themselves chased by two diamond thieves, referred to as B1 and B2. The crooks mistake Bassie for the go-between who came to collect the key to the vault of the stolen diamonds.
- Runtime
- Unknown
- Post-credits
- None listed
- Language
- Dutch
- Rated
- Check local
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Where to watch Bassie & Adriaan: The Secret of the Key
Bassie & Adriaan: The Secret of the Key isn’t streaming on any OTT platform in India yet; it released on 8 October 1978.
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Part of a series
Bassie & Adriaan Collectie: watch order
Cast & crew
Details
- Released
- 8 October 1978
- Original title
- Bassie & Adriaan: Het Geheim van de Sleutel
- Country
- Netherlands
- Written by
- Aad van Toor, Bas van Toor
Check ratings elsewhere
News & fan talk
Watch before Bassie & Adriaan: The Secret of the Key
In release order. The films it follows, and anything it builds on.
After Bassie & Adriaan: The Secret of the Key
What comes next in the series.

Bassie & Adriaan: The Diamond
1979 · 8.0/10
NewNext in the series

Bassie & Adriaan: The Crying Professor
1982 · 6.8/10
NewNext in the series

Bassie & Adriaan: Leren en Lachen Deel 1
1986
NewNext in the series

Bassie & Adriaan: Leren en Lachen Deel 2
1986
NewNext in the series

Bassie & Adriaan: Leren en Lachen Deel 3
1986
NewNext in the series

Bassie & Adriaan: Het geheim van de schatkaart
1987 · 8.0/10
NewNext in the series
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Bassie & Adriaan: The Secret of the Key: quick answers
What should I watch before Bassie & Adriaan: The Secret of the Key?
Watch Bassie & Adriaan: The Poltergeist (1978) first.
What comes after Bassie & Adriaan: The Secret of the Key?
Next in the series: Bassie & Adriaan: The Diamond (1979), Bassie & Adriaan: The Crying Professor (1982), and Bassie & Adriaan: Leren en Lachen Deel 1 (1986).
Is Bassie & Adriaan: The Secret of the Key worth watching?
Bassie & Adriaan: The Secret of the Key doesn’t have enough ratings for a verdict yet.
Does Bassie & Adriaan: The Secret of the Key have a post-credits scene?
None is listed for Bassie & Adriaan: The Secret of the Key. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
Bassie & Adriaan: The Secret of the Key parents guide: is it suitable for kids?
No age rating is listed for Bassie & Adriaan: The Secret of the Key yet.
Which OTT platform is Bassie & Adriaan: The Secret of the Key on?
Bassie & Adriaan: The Secret of the Key isn’t streaming on any OTT platform in India yet; it released on 8 October 1978. (Checked 14 November 2026.)
What movies are like Bassie & Adriaan: The Secret of the Key?
If you liked Bassie & Adriaan: The Secret of the Key, try Shorts, The Luck of the Irish, To Grandmother's House We Go.
Who directed Bassie & Adriaan: The Secret of the Key?
Bassie & Adriaan: The Secret of the Key (1978) was directed by Aad van Toor and Guus Verstraete jr. and stars Bas van Toor, Aad van Toor, Wil Sibbelee.
