When he was 26, his first play, "It Is Written", premiered to great controversy. The story of the play revolves around a battle between a sensation-craving cynic and a religious fanatic who takes scripture literally, all of this taking place while the city they live in is under siege. The play's opening night in April 1947, caused fights and protests in the audience. Between 1948 and 1949, Dürrenmatt wrote several segments and sketches for the anti-Nazi Cabaret Cornichon in Zürich; among these, the single-act grotesque short play "Der Gerettete" ("The Rescued").