A woman writes about her sister's tragedy, vowing to help others in similar situations: Because Bettina longs to leave her country home, her loving mother sends her and her serious-minded elder sister to London, accepting their aunt's invitation to visit and allow Bettina to be introduced to society. The girls' dressmaker steals the aunt's photograph and sends it to a woman who, disguised as their aunt, leads the girls to a brothel. After the elder sister escapes, aided by her concerned male com...