Beginning with "Marat/Sade" Weiss's work increasingly attracted the attention of communist East Germany. The play and all the ones to follow were staged in exemplary fashion in Rostock and other theaters in the GDR. Weiss frequently visited East Berlin and became friends with many East German writers and artists. He developed a collaborative relationship and eventually a close friendship with Manfred Haiduk, professor of literature in Rostock. After Weiss wrote his play about Trotsky, which East German party functionaries interpreted as an anti-Leninist provocation, he for a while became persona non grata, but the relationship soon revived. Weiss was one of only a handful of western artists and intellectuals whose work attracted wide interest in both Germanies though in both states he was also subjected to distrust and denunciations.