Mrs. Pittman's well-to-do Pittsburgh family didn't approve of her marriage, so the young bride moved away and lost touch with her relatives. Years later, she has returned to her native city as a widow and now runs a boarding house, one of the only jobs available to respectable women in the early twentieth century. Rooms at Mrs. Pittman's place are cheap because of the annual floods from the Allegheny River, which inundate the building's basement and first floor. Ordinarily, the overflowing waters are just a mild nuisance but this year the flood takes a sinister turn when a headless corpse...