Freud's Vienna hovers on the threshold between darkness and light, superstition and science. The murder of Dora, the haunted daughter of a respectable bourgeois family, is being investigated by the Inspector, newly schooled in rationalist criminology. Almost every aspect of the case remains hidden, untouchable. He recognizes uncertainty as part of solving the crime and knows that "what is unspoken remains most powerful." He is trying to find the "error...