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1110 F.L.A.S.H
Season 11
Episode 1110
Air date January 8, 2018
Written by Paul Aitken
Directed by Eleanore Lindo
Guest Stars Peter Stebbings as James Pendrick
Previous The Talking Dead
Next Biffers and Blockers

F.L.A.S.H.!” is the tenth episode of the eleventh season and the one-hundred-sixtieth of the Murdoch Mysteries series. It first aired on January 8, 2018.


Murdoch investigates a man’s bizarre death which may have been caused by a high-speed travel device.

At the Station House, Brackenreid and Higgins hear a mysterious statement from Bonnie Clement, a switch board operator at the Front Street Telephone and Telegraph Exchange, about two strange telephone calls putting a man in two different places at the same time. Mistaking her for a crackpot, the Inspector dismisses the report at first – until it proves to be critical information for Murdoch's investigation.

Charles Howden’s death was overheard by the switchboard operator who described his cries as being drained of sound and sound waves can't propagate in a vacuum. Murdoch and Ogden’s search for a vacuum large enough to fit an adult human, has Murdoch in for a dangerous ride.

Character Revelations

  • Julia is experiencing a possible side effect of the hormone treatment - a unpredictable 'urgency' (to copulate).
  • While examining the murder victim, William and Julia find a code word for when the 'urgency' arises so as "to strike while the iron is hot" (to procreate)– lemniscate.


Historical References

  • Darwinian principle that inclination is related to fertile receptivity. Darwinian principle that inclination is related to fertile receptivity.
  • In algebraic geometry, a lemniscate is any of several figure-eight or ∞-shaped curves. Commonly, known as the infinity symbol, a mathematical symbol representing the concept of infinity. The curve is also known as the lemniscate of Bernoulli.
  • Skate can mean the very slippery fish and is applied to persons who have slippery natures; A slang from the West Country of England (pre WWI) believed to have been used to describe someone who was a slippery customer. The word is use phonetically (possibly tongue-in-cheek) with 'Lemon' for their code word 'lemniscate' when Dr. Ogden leaves a message for Murdoch with Higgins.
  • Robert Goddard is an American inventor generally acknowledged to be the father of modern rocketry.


  • What F.L.A.S.H. stands for is unveiled 10 minutes into the episode.
  • Not the first time a strange telephone call is reported to the Station House, see Dial M for Murdoch.
  • Murdoch (with a similar expression) also watched Inspector Marcel Guillaume kiss Dr. Ogden's hand in Monsieur Murdoch.
  • Logograph (or logogram) is a written character that represents a word or phrase. Chinese characters and Japanese kanji are logograms; some Egyptian hieroglyphs and some graphemes in cuneiform script are also logograms. In the final scene, Dr. Ogden uses the term along with their code word.



Main Cast

Yannick Bisson as Detective William Murdoch
Hélène Joy as Dr. Julia Ogden
Thomas Craig as Inspector Thomas Brackenreid

Recurring Cast

Lachlan Murdoch as Constable Henry Higgins
Arwen Humphreys as Margaret Brackenreid
Peter Stebbings as James Pendrick

Guest Cast

Christopher Leveaux as Sam Trenwith
Blair Williams as Trenton Darling
John Novak as Clyde Spiker
Andrew Robinson as Robert H. Goddard
Aisha Evelyna as Bonnie Clement
Lily Lacey as Gong Fu Chi
Toby Proctor as Fenn Bickford
Kiri Etzkorn as Jaya Bhola
Derek Barnes as Charles Howden
Chris Gleason as Fisherman

Non-credited Cast


Murdoch Mysteries Season 11
"Up From Ashes" • "Merlot Mysteries" • "8 Footsteps" • "The Canadian Patient" • "Dr. Osler Regrets" • "21 Murdoch Street" • "The Accident" • "Brackenreid Boudoir" • "The Talking Dead" • "F.L.A.S.H.!" • "Biffers and Blockers" • "Mary Wept" • "Crabtree à la Carte" • "The Great White Moose" • "Murdoch Schmurdoch" • "Game of Kings" • "Shadows Are Falling" • "Free Falling" •
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