We are in the Berlin of the Weimar Republic. A glimpse of night life in a cabaret, unrestrained abandonment, escape by jazz. Then suddenly a man carrying a swastika bursts in. And everything changes, a giant hand grabs the beautiful singer - a trav - and drops his wig. Artists, lovers, Jews find themselves in a "salad basket" towards the camps. The camera points to one of them, who is wearing a pink triangle. Animated on dark backgrounds in a style akin to German expressionism, Triangle laments but does not preach, producing a very moving effect in this.