One night in Mexico City, Carmen Munoz, sex worker, was roaming the streets looking for customers. Unexpectedly, she found two colleagues, both over sixty years old, sleeping on the street, covered by newspapers. After almost forty years of giving service to butchers, porters, refuse collectors and criminals, they were now long forgotten by their families and society. Carmen was confronted with what would be her own fate, like most women of her profession. Striving for dignity for all of them, she organized her colleagues and led a group that resolved to find a home where they could spend their last days in safety and warmth. In 2006, after twelve years of work, and with the support of Mexican intellectuals and artists, the government gave them a seventeenth-century mansion, where Carmen founded Casa Xochiquetzal -- Casa X. Around sixty women, all over fifty years old, receive shelter, food, and medical and psychological care. This is not just a retirement home -- most of these...