Sherlock Holmes receives a mysterious package with a connection to a series of murders. Aided by his brother Mycroft and trusty sidekick Dr Watson, he is soon on the trail of the Victorian age's most infamous killer - Jack the Ripper. His investigation leads to a conspiracy involving eminent politicians and the aristocracy. Thriller, with John Neville, Donald Houston, John Fraser, Robert Morley, Judi Dench and Barbara Windsor.

When Watson reads from the newspaper there have been two similar murders near Whitechapel in a few days, Sherlock Holmes' sharp deductive is immediately stimulated to start its merciless method of elimination after observation of every apparently meaningless detail. He guesses right the victims must be street whores, and doesn't need long to work his way trough a pawn shop, an aristocratic family's stately home, a hospital and of course the potential suspects and (even unknowing) witnesses who are the cast of the gradually unraveled story of the murderer and his motive.