The Forbidden Street is a 1949 British melodrama film directed by Jean Negulesco and starring Dana Andrews, Maureen OHara, Sybil Thorndike, Fay Compton and A. E. Matthews. In Victorian London, a young woman marries a poor drunken artist and struggles to make ends meet. After his death, she takes in a lodger whom she soon falls in love with.
Adelaide still living in the Britannia Mews, when a young barrister, Gilbert Lauderdale Dana Andrews, shows up who is the living image of Adelaides late husband. He gets rid of the old woman by threatening to prosecute her for blackmail, eventually reunites Adelaide with her family, and along the way falls in love with her himself.
Source: Wikipedia