While the electrocution of a young woman leads Murdoch to a war between rival electricity suppliers, and no less than Nikola Tesla, Crabtree finds himself attracted to a suspect.

Murdoch questions the confession of a mad ventriloquist who claims he killed his alcoholic father.

An investigator arrives from Scotland Yard who is after the infamous Jack the Ripper. Meanwhile, Murdoch takes dancing lessons so that he can escort Dr. Ogden to a ball.

The young Harry Houdini becomes Murdoch's prime suspect when he investigates a daring robbery-homicide. Meanwhile, Dr. Ogden's sister comes to visit and soon becomes attracted to Murdoch.