Back in Montreal, the jobless fashion designer Sophie Malaterre is shown a site, switch.com, where it's likely to switch houses using a stranger for holiday season. Sophie expects an apartment in Paris nearby and apartments are changed by them. Sophie arrives in Paris on Saturday. While she is using a bath the next morning, policemen break in the arrest and flat Sophie. Detective Damien Forgeat interrogates Sophie considering that she is Bénédicte and she or he discovers that a beheaded body was found in her room and all evidence of her own life has been deleted.