Moss Rose and Joseph Shearing
Various internet sources state that the film "Moss Rose" was based on the Joseph Shearing novel, "The Crime of Laura Sarelle." This is simply not true as any reading of that novel will clearly show. The 1947 film "Moss Rose" was based on the 1934 Joseph Shearing Novel, "Moss Rose." And although the film plot varies greatly from the novel, the basic story is quite similar and many of the same character names were used in the film. The novel was based on the 1872 murder of a London prostitute, well before Jack the Ripper appeared on the scene.
Incidentally, Joseph Shearing was one of many pen names used by Marjorie Bowen (another pen name) who was born Gabrielle Margaret Vere Campbell and later married Arthur L. Long. She wrote many thrillers, romances, and novels of the supernatural, all under various pen names.
In any event, the film "Moss Rose" exudes Victorian/Edwardian atmosphere and suspense and is well worth watching. Truly, they don't make them like this any more.