Based on novels by Maureen Jennings, `Murdoch Mysteries' follows young detective William Murdoch. In a series of stories taking place in Toronto during the 1890s, several challenging murder cases arise. Murdoch uses up-and-coming forensics techniques and an unconventional approach, which often elicit skepticism from his fellow officers and his boss. Coroner Julia Ogden becomes Murdoch's number one ally, and they make a top-notch team, but he struggles against tradition and prejudice to solve some of the city's most gruesome murders.
When Murdoch and Crabtree participate in a battlefield re-enactment, one of the participating 'soldiers' is murdered.
Murdoch moves into a rooming house where a quirky fellow tenant insists that the detective helps investigate an apparent murder in the building.
When Crabtree and Effie attend a celebration of Charles Dickens' birth, the host winds up mysteriously dead.
The launch of Canada's first cooperative to provide homes for working people is disrupted when a young female resident is found dead from an overdose of stolen cocaine.
After a man dies in an explosion meant for fledgling starlet Ruth Higgins-Newsome, Murdoch suspects an overzealous fan.
After a rare humanoid skull is stolen, Murdoch's investigation reveals a few suspects and a dead potential buyer.
On Christmas Eve, Murdoch and Choi must intercept a spirited trouble-seeking drunk before his foes find him.
After decomposing bodies are found in a field, Murdoch fears a sequential killer targeting men from other cultures.
After the death of a factory worker leading a strike, Murdoch suspects plans to unionise may have motivated his killer.
Murdoch and Ogden celebrate their wedding anniversary in London, but their trip is disrupted by the death of a fellow guest at an English inn.
Murdoch, Ogden and Susannah are almost killed when a bomb destroys a shop. The body of a suffragette is discovered in the rubble, but Murdoch doesn't believe she's responsible.
The world's largest ruby due is to be displayed at a museum fundraiser, but when an attempt is made to steal the gem, Murdoch must assemble a team to protect it.
When a waitress is found strangled, Murdoch learns that Brackenreid met her at a mayoral rally. Meanwhile, a reluctant Higgins and keen Roberts conduct a door-to-door census.
When Higgins and Roberts are convinced to invest in a new automat diner, Murdoch finds an unfortunate link between their undertaking and the death of a young man.
After he witnesses the murder of a man on the street, Murdoch finds himself caught up in the beef between the Irish Catholics and Protestants.
Murdoch and Brackenreid are stunned witnesses when a local production of Hamlet comes to an abrupt end after the actor playing the King is poisoned on stage.
After a small aeroplane crashes in downtown Toronto killing the pilot, Murdoch discovers it was deployed with deadly chemicals.
After a prison break and a bank heist, Murdoch and Crabtree contend with reports of a mechanical man with a cannon arm.
When a lawyer's murder is staged to appear like a dog attack, Murdoch suspects the culprits were after a dog who was bequeathed a fortune.
When his neighbour finds a lost letter and believes it heralds a future crime, Murdoch is dismissive until she uncovers a potential recipient who might be the intended victim.
A man planning to share confidential information with Louise Cherry about the popular new Hydro-Electric Commission substation is found dead before their meeting.
With Constable Tucker's murder making salacious headlines, Brackenreid urges Murdoch to get a confession from Tony Petrucci. With guest star Katherine Ryan.