In Douglas Keesey's book on Verhoeven, he writes that the film is a coda to Verhoeven's previous film Soldier of Orange (1977).
[1] It concerns several Dutch resistance fighters 35 years after World War II who have sworn revenge on a Dutch SS officer who shot their friend during the Netherlands' resistance to Nazi occupation.
Upon finding the man, they discover that he is now paralysed and would suffer more to stay alive than be killed.
According to screenwriter Gerard Soeteman, the reason for this was that it was decided to give priority to the feature film Spetters first.
You can help Wikipedia by expanding it.This article related to a made-for-TV movie is a stub.