Julia, Emily and four of their friends (Lavinda, Rose, Diane and Jo) head off to a remote cabin on an island. It's a party to celebrate Lavinda's upcoming wedding to Cedric Maxwell. Cedric's sister, Rose, is part of the party and she and her brother own the family retreat.
The first evening there Lavinda tells a ghost story that Rose and Cedric knew, supposedly from their father, about a wild boy who would kill the family that had taken him in. Rose seems uncomfortable with the story, trying to stop the telling, but continues it with a frigid air, before Lavinda finally ends the tale. Rose sets in place the suspicion of the tale being true, manipulating the others by placing the subconscious thought in their minds.
Lavinda is the first to die after running off for a midnight swim. She screams only once, and Julia Ogden and Emily Grace discover her body, with a bloody wound on her back. Evidently Rose caught her from behind.
The remaining women take Lavinda's body to the dock, planning to leave, but the boat had been smashed with an axe, presumably during that first night. Rose was on hand to "discover" the rowboat with Julia Ogden and Diane.
The next night, Rose is able to kill Diane with another blow to the back after both she and Jo fall asleep outside. She drags Diane's body out to the woods, where she remains seated in a chair, then returns to the cabin and sleeps, appearing as though she never left.
Later, as Julia Ogden and Emily Grace examine the bodies in the cold cellar, Rose and Jo head back to the cabin. While crossing the woods at night, Dr. Grace is nearly killed by Rose, but is scared off by Beast of a Man. Rose satisfies herself with beheading Jo and placing her on a silver platter in the cabin. The two doctors figure out who the real killer is and rush back, and Rose attempts to kill them as well, but they manage to take her down and deliver her to the authorities, with Beast of a Man watching from a distance.
Still reeling from Julia's rejection of his marriage proposal, Murdoch immerses himself in his work. When a drunken Crabtree challenges Leslie Garland to a curling match, he has to put a foursome together. Murdoch declines an invitation to join but applies his scientific approach to helping them play better.
- Leslie Garland is an accomplished curler.
- Dr. Emily Grace, spent time with boys back in medical school and she learned how to blow out rings of smoke when smoking a cigar.
- At a bar with Crabtree, William confesses that he thought Julia was the "one" the moment he met her.
- As usual William focusing his deep disappointment into his new invention: dynamo bicycle lamp; It uses the kinetic energy of the person peddling it to power it, saving constables a great deal of time travelling to and from crime scenes at night.
- Julia tells Emily about the letter she has received from the supposed James Gillies, and Emily urges her to tell William about it.
- A doll is found as Julia is being locked in a cold-shed which triggers flashbacks to her being buried alive in Murdoch in Toyland.
- When Brackenreid tries to quit the curling team, he refers to Crabtree as his 'masonic superior', which refers back to the Season 3, episode 3: Victor,Victorian.
- Curling has been a very popular sport in Canada for many years. Invented in medieval Scotland, the sport was taken to Canada by Scottish immigrants.
- Murdoch "designs" a special kind of shoe for curling, one must use today.
- The title of this episode is a possible allusion to the film 1980 Friday the 13th.
- The only Friday the 13th in 1901 was in September and December. With the events of William McKinley following this episode taking place early September, this episode was probably just set on a random day in late August.
- This episode was awarded the 2015 Canadian Screen Awards for Best Achievement in Make-up, to key Make-up artist Deb Drennan.
|Murdoch Mysteries Season 7|
|"Murdoch Ahoy" • "Tour de Murdoch" • "The Filmed Adventures of Detective William Murdoch" • "Return of Sherlock Holmes" • "Murdoch of the Living Dead" • "Murdochophobia" • "Loch Ness Murdoch" • "Republic of Murdoch" • "A Midnight Train to Kingston" • "Murdoch in Ragtime" • "Journey to the Centre of Toronto" • "Unfinished Business" • "The Murdoch Sting"•"Friday the 13th, 1901"•"The Spy Who Came Up to the Cold"•"Kung Fu Crabtree"•"Blast of Silence"•"The Death of Dr. Ogden"|
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