"Der Fall Deruga" by Ricarda Huch is a novel published in 1917. When Dr. Sigismondo Deruga's ex-wife dies, he faces murder charges after traces of poison are found in her body. The physician refuses to explain his whereabouts during the death, even as evidence mounts against him. This early courtroom drama follows a tense trial where the defendant's strange behavior and mysterious silence leave everyone wondering: Did he kill her, and if so, why won't he defend himself?