Det. Murdoch and Dr. Ogden investigate the death of Richard Hartley a member of the men's eight rowing team at the prestigious, and snobbish, King's Rowing Club. Hartley was a newly appointed member of the team, having displaced Horace Briggs, a blue collar working man who was not of the same class as the others. Murdoch learns that Hartley had recently had an argument with his coach, Hamilton Kane. To complicate matters, the Hartley's are a prestigious Toronto family with a great deal of influence. The autopsy reveals that he drowned, but had also been beaten. Using a new-fangled lie-detecting device and analyzing the content of his lungs provides Murdoch with the clues he needs to solve the case.