In 1981 Sophie Calle took a job as a chambermaid for the Hotel C in Venice, Italy. Stashing her camera and tape recorder in her mop bucket, she not only cleans and tidies, but sorts through the evidence of the hotel guests' lives. Assigned 12 rooms on the fourth floor, she surveys the state of the guests' bedding, their books, newspapers and postcards, perfumes and cologne, traveling clothes and costumes for Carnival. She methodically photographs...