La tête de l"emploi

The Police are baffled by a series of six strange deaths in which each victim was beheaded, and none of the victims seem to have any connection to one another. When Drake tells the Lieutenant that similar murders (seven in each case) had also occurred in St. Louis and Chicago, the Lieutenant finds a connection between all of the crimes and a Professor Shorham, who lectures scientists on his invention of a mechanical brain, a discovery that results in the Lieutenant becoming the mad Professor's 7th victim in the city!