who is the murderer. True event In 1956 a murder was committed in Maassluis during an evangelisation gathering, when Maarten ’t Hart was 12 years old. Comments by Maarten 't Hart Maarten 't Hart commented that the film is quite different from the book. He is fine with the film, but, apart from the fact that it was based on his book, he was not and did not want to be involved in it. He especially likes how Inspector Douvetrap with his son with Down syndrome is depicted, just like it is described in the book. External links Official homepage at United International Pictures Netherlands 2006 films Dutch thriller films Films set in the Netherlands Films shot in the Netherlands Films based on Dutch novels Films produced by Rob Houwer 2000s thriller films 2000s Dutch-language films Films directed by Guido Pieters