William Murdoch goes to Montreal, following Harry's trail, unaware that he is being followed. Watts is called to a property in front of which a Japanese couple have lit a fire so that the spirit of their deceased daughter may rest in peace. According to them, the man who lives in the house is responsible for their daughter's death. In accordance with their religion, they have burned their daughter's body, which complicates the investigation.
Episode 1
With their lives in danger, Murdoch searches for Anna Fulford and her son in Montreal.
Episode 2
To save his former lover and son, Murdoch makes a risky deal with a Black Hand henchman.
Episode 3
Murdoch pursues Inspector Giles after he escapes from prison to vindicate a murderer.
Episode 4
When their train derails, Ogden and Brackenreid suspect it was sabotage to hide a murder.
Episode 5
When Murdoch investigates the murder of a ladies man, Crabtree’s aunt is the prime suspect.
Episode 6
At Halloween, Murdoch pursues a killer dressed as a clown who is terrorizing romantic, young couples.
Episode 7
To solve an inmate's murder, Murdoch sends Ogden undercover at a woman's reformatory.
Episode 8
While investigating a stabbing, Murdoch and Brackenreid inadvertently discover spy Terrence Meyers' hidden civilian life.
Episode 9
Murdoch investigates when Higgins goes missing while searching for his kidnapped sister-in-law.
Episode 10
Murdoch suspects the murder of a nasty, satirical cartoonist has links to city politics.
Episode 11
Murdoch and company's Christmas at an idyllic country estate turns potentially deadly.
Episode 12
Murdoch investigates the suspicious death of a stage manager after a going away party for Mary Pickford.
Episode 13
When Murdoch investigates the mysterious death of a colleague of Sigmund Freud, he receives unexpected psychoanalysis.
Episode 14
Murdoch arrests a man for trying to kill a woman he claims is a witch, shortly thereafter he dies mysteriously while in custody.
Episode 15
Murdoch's son Harry is visiting from boarding school when William and Julia are abducted by a nefarious, vengeful foe.
Episode 16
A charity basketball game takes a grim turn for Murdoch and his colleagues when a friend of the game's inventor is murdered.
Episode 17
Violet Hart investigates when a protester dies at an event for Black people's rights.
Episode 18
Murdoch investigates when a Japanese spy is found dead in a Korean family's cellar.
Episode 19
Murdoch suspects someone in a vagrant encampment robbed and killed a young woman.
Episode 20
Murdoch investigates after a murder is transmitted over James Pendrick's new invention.
Episode 21
Murdoch investigates the murder of a musician whose death was narrated in a blues song.
Episode 22
When Crabtree's mentally deranged kidnapper, Amelia, turns herself in, he braces for trouble.
Episode 23
When a Murdoch lookalike is murdered, danger is near. Murdoch must find the murder before the murder finds him.
Episode 24
Season Finale: With his family in hiding, Murdoch tries to discover who is behind attempts on their lives.