With Jack the Ripper killing women in the Whitechapel district of London, people are on edge. Enter the mysterious Mr. Slade who arrives at the home of Helen and William Harley looking to rent rooms. Slade is a strange man. He is a respected pathologist and researcher at a major hospital but very much keeps to himself. He also happens to be out of the house every time the Ripper strikes. Mrs. Harley becomes convinced that Slade is the Ripper but with tensions mounting across the city, the evidence is anything but clear.