While Crabtree serves time for the murder of his sweetheart's husband, Murdoch investigates an inmate stabbing that may be connected to the case.

Murdoch and his colleagues must protect the safety of author Mark Twain after he stirs up controversy during a speaking engagement in Toronto.

It is the eve of Dr Grace's departure for England, when a young suffragette is murdered. Murdoch is called to investigate.

When statues made from the bodies of naked women are discovered, Murdoch suspects a serial killer who knew the victims.

Murdoch investigates the poisoning of an anti-prohibition politician while Margaret Brackenreid hosts a visit from radical temperance advocate Carrie Nation.

When a childhood friend from wilderness camp alerts Murdoch to imminent danger, they travel to Algonquin Park to investigate a 30-year-old murder.

After a student dies mysteriously in a professor's opium den, Crabtree helps Ogden and Rebecca James investigate in the morgue.

While applying for a loan to build his dream home for Ogden, Murdoch finds himself in the midst of a bank heist that puts his reputation at risk.

Murdoch and Ogden investigate the suspicious death of an Arctic expedition crewmember, while their workplaces become increasingly complicated in light of recent events.

While investigating a golfer's murder, Murdoch becomes obsessed with the game.

The electrocution of an elderly groom leads Murdoch to suspect a black widow, while Crabtree meets Lucy Maud Montgomery at a writing class.

Murdoch is pressured by the new Chief Constable to make an expedient arrest in the murder of a white man at a black church.

Murdoch and the team investigate a grisly murder linked to a feral young woman.

Murdoch goes under cover to investigate the murder of a reporter who was investigating a workhouse.

Murdoch and Brackenreid unwittingly put their careers at risk when they investigate high-level police corruption.

The shooting of a man in a burlesque club sends Murdoch and Brackenreid to Buffalo, New York to investigate. Meanwhile, Crabtree becomes close to one of the dancers.

The return of an adversary threatens the lives of Murdoch and Ogden.