Jack Stevens discovers the bodies of two women, Philomena Blackstaff and Mary Walsh, tied together and hung by their ankles in a position resembling the symbol for treachery as depicted on tarot cards. Though retired and now wealthy, Stevens is an ex-sheriff and involves himself in the subsequent investigation. As a result of Jack `stealing' Philomena's diary and his association with the Pinkerton detective agency, it is discovered that Mary Walsh worked undercover for the Pinkertons, investigating the Knights of Labour (the fastest growing workers' rights movements in America of the late 1800's). The women had been working together, tracing the man who was selling guns and dynamite to the more extremest factions of the workers movement. This led them to Ruby's, a secret `nightclub for deviants', where Stevens and Inspector O'Leary believe the pair fell foul of the man they were looking for, gang leader Joseph Mannheim. With the May 4th Haymarket riots and bombings looming, Stevens must uncover the truth about The Hanging Women before it's too late.