The Conference - a German film about Nazi officials meeting to, essentially, plan the Holocaust - is an uncomfortable watch, which is a compliment to its accuracy.
When I saw they'd made a film about the Wannsee Conference, I had mixed feelings.
On the one hand, I had to assume that it would be gruelling and depressing - the unhappy ending was well enough known, after all. On the other hand, it seemed to offer a fresh angle on a familiar event.
Well, The Conference was certainly depressing. But it was also by no means the first time the story had been told.
Aside from several documentaries, there was a German TV movie in the '80s and a 2002 English-language film called Conspiracy that won Emmys for stars Kenneth Branagh and Stanley Tucci. Also present were Colin Firth and a very young Tom Hiddleston.
So what I'm saying is The Conference, directed by German TV veteran Matti Geschonneck, isn't exactly breaking new ground.
Like previous versions, it's based on the copious minutes kept by the secretarial staff led by the notorious Adolf Eichmann.
The rest of the conference is made up of men from various sectors of the Nazi administration including lawyers, SS members and senior officers of the armed forces brought in from all over the new German Empire, particularly from Eastern Europe.
If you don't know how the Nazi bureaucracy worked, it's an object lesson in ruthlessness.
But this group, summoned by Heinrich Himmler's right-hand man in the SS, Reinhardt Heidrich, had one specific purpose. To solve the so-called "Jewish question".
Incidentally, there was no debate about whether there was a Jewish question. This was simply a matter of ways and means - what Heydrich referred to as a "question of dimensions".
In short, how would they go about it, and how big was the task set for them by Adolf Hitler? That at least was simple. There were around 11 million Jews in Europe.
The solution, hidden in official legalese, was to eliminate as many as they could - they called it "special treatment".
Though there were technical issues raised about how soon they could go about it, and who exactly counted as Jewish.
There was also some concern over using gas. It seemed some World War One veterans didn't like it, it stirred up too many unpleasant memories.
One thing we tend to forget when taking the moral high ground over the Nazis is how prevalent antisemitism was outside Germany at the time.
You watch these people in their immaculate suits with their respectable titles - many at the table in Wannsee were "doctors" - as they seriously discussed the ultimate obscenity, mass murder on an industrial scale.
The Conference is an uncomfortable watch, which I suppose is a compliment to its accuracy.
