Walter Hartright, a young art teacher, encounters and gives directions to a mysterious and distressed woman dressed entirely in white, lost in London; he is later informed by policemen that she has escaped from an asylum. Soon afterwards, he travels to Limmeridge House in Cumberland, having been hired as a drawing teacher on the recommendation of his friend, Pesca, an Italian language teacher. The Limmeridge household comprises the invalid Frederick Fairlie and Walter's students: Laura Fairlie, Mr. Fairlie's niece, and Marian Halcombe, her devoted half-sister. Walter realises that Laura bears an astonishing resemblance to the woman in white, who is known to the household by the name of Anne Catherick, a mentally disabled child who formerly lived near Limmeridge and was devoted to Laura's mother, who first dressed her in white.
