In the May 1997 edition of the Big Issue, the ‘Missing Persons’ feature contained a photograph of a 15-year-old girl who had been out of contact with her family for two months. Lorna Tucker ultimately spent 18 months on the streets before finding a way out, and her documentary Someone’s Daughter, Someone’s Son, is a clear-eyed look at the problem of homelessness, which recognises its severity and complexity but also emphasises the possibility of change.