Man In The Attic (1953)
It’s London, 1888. On the third night of the Jack the Ripper killings, a man rents out an attic from an older couple in need of extra income. The man (Jack Palance), a research pathologist, begins working on his experiments in the rooms. Helen Harley, the landlady (Frances Bavier), becomes suspicious of the man, especially when her niece shows an interest in him.