List of Murdoch Mysteries episodes
Season 12 (2018–2019)
Unlike seasons nine through eleven, the twelfth season of Murdoch Mysteries did not include a Christmas movie, opting instead for an "out of the box" Halloween episode.

List of Murdoch Mysteries episodes

Section Title: Season 12 (2018–2019)
Table Section Text: Unlike seasons nine through eleven, the twelfth season of Murdoch Mysteries did not include a Christmas movie, opting instead for an "out of the box" Halloween episode.

No. overall	No. in season	Title	Directed by	Written by	Original air date

169	1	"Murdoch Mystery Mansion"	Gary Harvey	Peter Mitchell	September 24, 2018

Murdoch and Ogden throw a housewarming upon completion of their new and avant-garde home, which was designed by Frank Lloyd Wright.

170	2	"Operation: Murder"	Harvey Crossland	Mary Pedersen	October 1, 2018

When one of Julia's patients dies after a seemingly successful surgery, she refuses to accept that it may have been her fault and becomes obsessed with the idea that it was murder.

171	3	"My Big Fat Mimico Wedding"	Gary Harvey	Simon McNabb	October 8, 2018

The eccentric Newsome family comes together for Higgins and Ruth's wedding, which quickly derails amidst disapproving relatives, jealous suitors, and a guest who keeps trying to murder Henry.

172	4	"Murdoch Without Borders"	Harvey Crossland	Dan Trotta	October 15, 2018

The passing of Canada's 1906 immigration act leads to the mass deportation of criminal, unemployed, and sick migrants. Brackenreid bends the rules and helps a Greek carpenter avoid expulsion, a decision which blows up in his face when the man becomes the prime suspect in the murder of the Toronto immigration officer.

173	5	"The Spy Who Loved Murdoch"	Alison Reid	Simon McNabb	October 22, 2018

Canada is chosen as neutral ground for the signing of the Triple Entente treaty, but proves to be anything but when the French signatory is murdered.

174	6	"Sir. Sir? Sir!!!"	Craig David Wallace	Peter Mitchell	October 29, 2018

An alien species intent on wiping out the human race invades Toronto, and Crabtree becomes humanity's last hope for salvation.

175	7	"Brother's Keeper"	Craig David Wallace	Paul Aitken	November 5, 2018

When the sadistic criminal who tortured and murdered Detective Watts' adoptive brother is exonerated and released from prison, Watts kills him.

176	8	"Drowning in Money"	Alison Reid	Noelle Girard	November 12, 2018

Murdoch investigates the apparent double suicide of a wealthy couple who drowned in their swimming pool. The discovery that the couple's daughter recently married a British monarch leads Murdoch to suspect a duke who disdained the family for marrying into nobility.

177	9	"Secrets and Lies"	Leslie Hope	Peter Mitchell	November 26, 2018

Brackenreid travels to St. Marys at the behest of a former lover, without informing his family or friends.

178	10	"Pirates of the Great Lakes"	Leslie Hope	Dan Trotta	January 7, 2019

An Italian detective implores Murdoch to investigate when treasures stolen from a Neapolitan museum are smuggled into Toronto. When one of the thieves is found dead, Crabtree goes undercover as a wealthy antiques collector in order to lure out the killer.

179	11	"Annabella Cinderella"	Sherren Lee	Paul Aitken	January 14, 2019

Constables Crabtree and Brackenreid are tasked with transporting a convicted axe murderer to prison. When she escapes during transit and returns to her home town, supposedly seeking revenge on all those who helped to convict her, Detective Watts steps in to help recapture her.

180	12	"Six of the Best"	Sherren Lee	Lori Spring	January 21, 2019

181	13	"Murdoch and the Undetectable Man"	Mina Shum	Paul Aitken	January 28, 2019

182	14	"Sins of the Father"	Mina Shum	Simom McNabb	February 4, 2019

183	15	"One Minute to Murder"	Mars Horodyski	Maureen Jennings	February 11, 2019

184	16	"Manual for Murder"	Warren Sonoda	Paul Aitken and Robert Rotenberg	February 18, 2019

185	17	"Darkness Before the Dawn (Part 1)"	Peter Mitchell	Mary Pedersen	February 25, 2019

186	18	"Darkness Before the Dawn (Part 2)"	Peter Mitchell	Simon McNabb	March 4, 2019

Sentence(s)

A 186 episodes of Murdoch Mysteries have aired.

final_sentence: A 186 episodes of Murdoch Mysteries have aired.