Based on Maureen Jennings' best-selling novels and set in Toronto in the formative years of the 20th century, Murdoch Mysteries explores the world of William Murdoch (Yannick Bisson), a dashing detective who uses inventive forensic techniques for the time to solve some of the city's most gruesome crimes.
Murdoch's colleagues include Constable George Crabtree (Jonny Harris), Murdoch's eager but sometimes naïve right-hand man; Inspector Brackenreid (Thomas Craig), Murdoch's sceptical yet reluctantly supportive boss; feisty pathologist Dr Emily Grace (Georgina Reilly); and the love of his life, pathologist-turned-psychiatrist Dr Julia Ogden (Hélène Joy), a staunch supporter who shares the detective's fascination with science and innovation.
In series seven, the usual 13 episodes gets expanded to 18 adventures and Murdoch will cross paths with famous figures including Thomas Edison against a backdrop of historical events including the assassination of American President William McKinley and the death of Queen Victoria.
To start things off, on the first-ever Victoria Day, Murdoch is reunited with his beloved Julia aboard an opulent Titanic-like passenger ship on its maiden voyage. Their leisure time is short-lived, however, when the daughter of the ship's owner appears to have been pushed overboard.
Later, Murdoch is tasked with escorting his arch nemesis, convicted murderer James Gillies, on a train ride to his execution whilst Dr Julia Ogden confronts a distressing case that's close to home when her father unexpectedly passes away. The death is put down to natural causes but Ogden grows suspicious, especially when it turns out that one of the beneficiaries of her father's will is his relatively new neighbour.
Murdoch and his team will also investigate an apparent zombie invasion, encounter the early days of "talkies" in the motion picture industry and explore the dangerous underbelly of competitive sports.