"Raskolnikov sat down; he no longer shivered, he was hot all over. In amazement he listened with strained attention to Porfiry Petrovitch who still seemed frightened as he looked after him with friendly solicitude. But he did not believe a word he said, though he felt a strange inclination to believe. Porfiry's unexpected words about the flat had utterly overwhelmed him. "How can it be, he knows about the flat then," he thought suddenly, "and he tells it me himself !" "Yes, in our legal practice there was a case almost exactly similar, a case of morbid psychology," Porfiry went on quickly. "A man confessed to murder and how he kept it up! It was a regular hallucination; he brought forward facts, he imposed upon everyone and why? He had been partly, but only partly, unintentionally the cause of a murder and when he knew that he had given the murderers the opportunity, he sank into dejection, it got on his mind and turned his brain, he began imagining things and he persuaded himself that he was the murderer. But at last the High Court of Appeal went into it and the poor fellow was acquitted and put under proper care."