Based on Maureen Jennings' award-winning novels, Murdoch Mysteries stars Yannick Bisson as Detective William Murdoch, a pioneering detective who uses ground-breaking forensic approaches to solve cases. Putting him at odds with his bosses - who favour old-fashioned crime-solving techniques - Murdoch must keep pace with new scientific advancements in the early 20th century, as well as new types of crime never seen before on the streets of his native Toronto.
As the cases get more and more intriguing, well-known faces from history are embroiled in Murdoch's investigations. After hours of drinking, a young Winston Churchill (Downton Abbey's Thomas Howes) awakens at the scene of a murder with no memory of the previous night and Murdoch must piece together what happened in order to prove his innocence. Later, when an incredibly perceptive murder suspect claims to be Sherlock Holmes, Williams calls on author Arthur Conan Doyle (Geraint Wyn Davies) to help out.
Murdoch's colleagues include Constable George Crabtree (Jonny Harris), Murdoch's eager but sometimes naïve right-hand man; Inspector Brackenreid (Coronation Street's Thomas Craig), Murdoch's sceptical yet reluctantly supportive boss and feisty pathologist Dr Emily Grace (Georgina Reilly) who joins the main cast this series.
And then there's the love of his life... pathologist-turned-psychiatrist Dr Julia Ogden (Hélène Joy), a staunch supporter who shares the detective's fascination with forensic science and innovative ideas. All are valuable allies who help Murdoch solve his varied cases and traverse the many levels of Victorian society.
The sixth series begins in the year 1900, where Murdoch is finally poised to enjoy a personal life as successful as his professional one. Meanwhile, Dr Julia Ogden launches a progressive new career as a psychiatrist at the Toronto Women's Lunatic Asylum.
Having finally expressed their deep love for each other, William and Julia realise that they have new challenges to face in trying to be together. Meanwhile, Crabtree's burgeoning investigative success bolsters his confidence and his romantic pursuit of Dr Grace.
Along the way, Murdoch investigates after a prototype airplane crashes and kills an innocent bystander, looks into the death of a politician, rumoured to have been killed by a vengeful ghost, and must reveal rather more of himself than he likes when a skeleton is found in a nudist community.
William also first meets femme fatale Eva Pearce (Daiva Johnston) in Series 6, a thief, kidnapper and killer who would prove to be one of Murdoch's most cunning foes and there's a thrilling finale when Dr Ogden is implicated in the suspicious murder of her estranged husband and Murdoch must race against the clock when she is sentenced to hang.