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The Knife Synopsis

Kate Tarleton grows up on a Southern plantation and becomes engaged to her guardian, Dr. Robert Manning, a famous surgeon. When Robert, Kate, and her younger sister Mary Lou visit New York, where the doctor wishes to conduct medical experiments, the superstitious Kate goes to the home of a fortune-teller named Stella Hill. Stella, whose principal business is white slave trafficking, drugs Kate and forces her to work in a "den of vice," run by Stella and her accomplice Jimmy Bristol, where she contracts syphilis and goes insane. Robert, Detective Ellis, and a lawyer named Billy Meredith rescue Kate, who recovers her sanity but remembers nothing of her bondage. Robert uses Stella and Jimmy in his experiments and through them discovers a cure for Kate's illness. District Attorney Scott is questioning Robert about the propriety of his experiments when Kate enters and sees Jimmy. Her memory suddenly returns, and she narrates her story to Scott, clearing Robert's name.

The Vanderhoff Affair Synopsis

Lester, returning from Mexico, becomes interested in Helen, a girl whose life he had saved. Helen, according to her uncle, Vanderhoff, is insane. Dr. Luchow, Lester's friend, confirms Vanderhoff's statement. Upon returning home, the author finds that the Vanderhoffs have rented the adjoining cottage. The writer sees Helen drop a note. Picking it up, he finds the paper blank. Lester's window faces Helen's window. That night, the girl informs him in pantomime that the note contains a message written in milk. Scorching brings the message into view. As the result, Lester learns that Helen is the victim of a foul plot on the part of her uncle who desires to obtain her fortune. The girl drops a notebook which contains the details. The author is thus informed that Vanderhoff, by keeping his niece drugged with a loco weed preparation, succeeds in fooling the physicians who examine her. Lester breaks into the Vanderhoff house the following morning. He is discovered by Jose, who knocks the author unconscious and places him in the room above the dining room. Vanderhoff hastens his preparations to place Helen in the insane asylum. Dr. Luchow calls for the purpose of preparing the papers. Lester, using the top of a ventilator, saws away at his bonds. The blood from his bruised hands drips down upon Luchow's paper and the doctor soon becomes aware of what is going on. Jose attacks Lester just as the latter gains his freedom, but Dr. Luchow's timely arrival saves his friend. The Mexican and Vanderhoff endeavor to make their get-away in an auto, but an explosion, which wrecks the machine, ends their villainous careers.