All Episodes of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files
Browse all episodes of Layton Mystery Detective Agency: Kat's Mystery‑Solving Files
Season 1
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Katrielle and the Mysterious House
Season 1 Episode 1 - Aired 4/8/2018
Katrielle Layton, an intrepid investigator who heads up the three strong team at the Layton Detective Agency alongside her assistants Ernest and Sherl, takes on a case involving a mysterious house in which a new tenant's family suddenly and inexplicably disappeared.
Director: Kazuki Yokoyama
Writer: Akihiro Hino
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Katrielle and the Devil's Dress
Season 1 Episode 2 - Aired 4/15/2018
Katrielle is approached by Pastel, a struggling musician, who claims that a strange dress he bought for his wife Olivia is causing her to become possessed.
Director: N/A
Writer: N/A
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Katrielle and the Resurrected Corpses
Season 1 Episode 3 - Aired 4/22/2018
A young woman named Liv seeks Katrielle's help after she is visited by her late husband, Andy, apparently returned to life as a zombie.
Director: N/A
Writer: N/A
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Katrielle and the Phantom Thief of the Century
Season 1 Episode 4 - Aired 4/29/2018
Inspector Hastings enlists the Agency's assistance in tracking down a serial jewel thief before the criminal can enact their most daring heist yet.
Director: N/A
Writer: N/A
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Katrielle and the Lucky Man
Season 1 Episode 5 - Aired 5/6/2018
The team becomes involved in a new case when a young man approaches the Agency in the hope of discovering a way to resume an implausible lucky streak.
Director: N/A
Writer: N/A
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The Bus that Leapt Through Time
Season 1 Episode 6 - Aired 5/13/2018
Katrielle stumbles upon a fresh mystery when a classmate of Ernest relates the story of a mysterious bus journey that seemingly transported them back to the time of their childhood.
Director: N/A
Writer: N/A
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Ratman Returns
Season 1 Episode 7 - Aired 5/20/2018
The Agency is visited by a young boy named Leo who fears that the mysterious hero of London's streets, Ratman, has been kidnapped.
Director: N/A
Writer: N/A
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The 100 Million Pounds that Left with the Wind
Season 1 Episode 8 - Aired 5/27/2018
The team are summoned by Inspector Hastings to the site of a seemingly impossible burglary: one hundred million pounds have vanished from a high-tech bank vault.
Director: N/A
Writer: N/A
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Cat-Colored Skyscrapers
Season 1 Episode 9 - Aired 6/3/2018
Katrielle is called to the estate of a millionaire gourmet with an unusual request: her pet has gone missing, and she wants it found before her dinner party commences.
Director: Tetsuaki Watanabe
Writer: N/A
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Professor Layton and the Relics Treasure: Episode 1
Season 1 Episode 10 - Aired 6/10/2018
Rosa, an old acquaintance of Katrielle's father, visits the Agency with information relating to the Professor's disappearance eleven years ago.
Director: N/A
Writer: N/A
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Mystery at New Cinema Paradise
Season 1 Episode 11 - Aired 6/17/2018
The Agency attend the premier of a much-anticipated film, only to discover mid-scene that the moment of the climactic kiss has disappeared from the reel.
Director: N/A
Writer: N/A
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Aspoirot and London's Holiday
Season 1 Episode 12 - Aired 6/24/2018
Relaxing on a public holiday, the Agency team become embroiled in a highly unusual case when a desperate Inspector Hastings pleads their aid in finding a last-minute gift for his wife's birthday.
Director: N/A
Writer: N/A
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Katrielle and the Doppelgänger
Season 1 Episode 13 - Aired 7/1/2018
Katrielle takes on a new case involving a young pianist who is being plagued by appearances of a doppelgänger.
Director: N/A
Writer: N/A
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Genius Analyst Officer Geraldine Royer
Season 1 Episode 14 - Aired 7/8/2018
Katrielle and the team are left puzzled when Hastings requests their help on a case where the culprit has already been uncovered.
Director: N/A
Writer: N/A
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Katrielle and the Mystery Circles
Season 1 Episode 15 - Aired 7/15/2018
The Agency receives a new mystery to solve when a young farmer details the unexplained appearance of strange patterns in their wheat fields.
Director: N/A
Writer: N/A
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Katrielle and the Pandas' March
Season 1 Episode 16 - Aired 7/22/2018
Katrielle investigates a young girl on behalf of her concerned mother, who believes her daughter is able to predict the future.
Director: N/A
Writer: N/A
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Katrielle and the Monster of London
Season 1 Episode 17 - Aired 7/29/2018
Hastings turns to the Agency trio when London is menaced by a mysterious growling giant lurking in the fog.
Director: N/A
Writer: N/A
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Molentary Express and Three Incidents
Season 1 Episode 18 - Aired 8/5/2018
Travelling on board the Molentary Express for a special solar eclipse tour, the team find their attention divided when clients old and new describe a sequence of strange events.
Director: N/A
Writer: N/A
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The Lonely Ghost
Season 1 Episode 19 - Aired 8/12/2018
The team are summoned by a young heiress whose estate is seemingly being haunted by a host of ethereal apparitions.
Director: N/A
Writer: N/A
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Professor Layton and the Relics Treasure: Episode 2
Season 1 Episode 20 - Aired 8/19/2018
Rosa returns to continue her story, and reveals the link between Katrielle's origins and the Professor's disappearance.
Director: N/A
Writer: N/A
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Katrielle and the Sweet-Scented Street Labyrinth
Season 1 Episode 21 - Aired 8/26/2018
In search of sweets of legendary reputation, Katrielle is hooked when she is told that she will have to prove her connoisseur qualifications by locating the nearby store herself.
Director: Tetsuaki Watanabe
Writer: N/A
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Ultra-High Performance Robot Socketman
Season 1 Episode 22 - Aired 9/2/2018
Katrielle is invited to the unveiling of Agency acquaintance and child genius Bengary's latest invention: Sketman John, a robotic renaissance-manservant.
Director: N/A
Writer: N/A
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Katrielle and the Great Office Infiltration Strategy
Season 1 Episode 23 - Aired 9/16/2018
One of London's famous "seven millionaires" requests the team's investigative attentions after discovering a love letter written by his much-adored daughter, Allie.
Director: N/A
Writer: N/A
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The Clockwork Sweets
Season 1 Episode 24 - Aired 9/23/2018
Hastings employs the Agency's efforts in the search for a hand belonging to Big Ben, in the hope of recovering it before the arrival of a foreign ambassador.
Director: N/A
Writer: N/A
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A Riverside Festival Love Story
Season 1 Episode 25 - Aired 9/30/2018
Katrielle joins an investigation at London's Riverside Festival into a tragic incident that took place on the banks of the River Thames, mirroring a local legend.
Director: N/A
Writer: N/A
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The Diary of Noah
Season 1 Episode 26 - Aired 10/7/2018
Ernest recounts the time he was accused of stealing valuable research papers on his first day at Gressenheller University, and his resultant first encounter with Katrielle.
Director: N/A
Writer: N/A
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Fugitive Katri
Season 1 Episode 27 - Aired 10/14/2018
The Agency team are forced to go on the run from the law after Katrielle finds herself the prime suspect in a murder investigation.
Director: N/A
Writer: N/A
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The Goddess of the Thames Smiles a Second Time
Season 1 Episode 28 - Aired 10/21/2018
Katrielle finds yet another mystery on her hands when a celebratory treasure hunt held on a luxury cruise ship's inaugural voyage goes awry.
Director: N/A
Writer: N/A
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Katrielle and the Nessie of Loch Nem
Season 1 Episode 29 - Aired 10/28/2018
The Agency trio travel to the Scottish Highlands after receiving a request to investigate recent sightings of the famous "Nessie" creature on the waters of Loch Nem.
Director: N/A
Writer: N/A
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Katrielle and the Immortal Vampire
Season 1 Episode 30 - Aired 11/4/2018
Strange goings-on in a suburban domicile lead the Agency's latest client to seek their advice as to whether or not his wife has become a witch.
Director: N/A
Writer: N/A
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Katrielle and the Witch Wife
Season 1 Episode 31 - Aired 11/11/2018
Strange goings-on in a suburban domicile lead the Agency's latest client to seek their advice as to whether or not his wife has become a witch.
Director: N/A
Writer: N/A
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Katrielle and the Prince of the Stars
Season 1 Episode 32 - Aired 11/18/2018
Katrielle takes on the task of reuniting a young woman with the object of her affections, a man who claimed to hail from another planet.
Director: N/A
Writer: N/A
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Katrielle and the Murder on the Spaceship Bengarian
Season 1 Episode 33 - Aired 11/25/2018
Bengary challenges the Agency team to solving their most ambitious case yet: a murder mystery from the realm of his own imagination.
Director: N/A
Writer: N/A
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Professor Layton and the Relics Treasure: Episode 3
Season 1 Episode 34 - Aired 12/2/2018
On the tail of the fabled Relics, the Professor and Luke of eleven years prior close in on a shadowy figure, while Katrielle and co. trace their whereabouts in the present.
Director: N/A
Writer: N/A
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Professor Layton and the Relics Treasure: Episode 4
Season 1 Episode 35 - Aired 12/9/2018
The paths of the parties past and present converge in Southampton, as the final hours before the duo's disappearance count down.
Director: N/A
Writer: N/A
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The Cursed London Collection
Season 1 Episode 36 - Aired 12/16/2018
Angel Arrow CEO Bergman calls on the Agency after the label's four showcase dresses vanish two nights before the world's biggest fashion show.
Director: N/A
Writer: N/A
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Mintan's New Ambition
Season 1 Episode 37 - Aired 12/23/2018
The Agency is visited by Mintan's fellow farmworkers, seeking the team's help after a sudden personality change in their old friend transformed him from hard-working agronomist to obnoxious gambler sporting an improbable winning streak.
Director: N/A
Writer: N/A
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Dancing Scotland Yard Great Investigation Line
Season 1 Episode 38 - Aired 1/6/2019
Katrielle joins a Scotland Yard blockade erected around a bridge due for demolition after Bengary's latest Sketman, Punch, takes up residence. With the giant robot incapable of vocal communication, Katrielle must figure out the reason behind its behavior to put an end to the standoff.
Director: N/A
Writer: N/A
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Katrielle and the Invisible Baby
Season 1 Episode 39 - Aired 1/13/2019
An Agencybound Katrielle receives a call from babysitter Kelly, whose concerns are centered around her latest assignation appearing to include an invisible infant.
Director: Kazuki Yokoyama
Writer: Yuji Kondo
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Geraldine Royer and the Final Customer
Season 1 Episode 40 - Aired 1/20/2019
Spurred by a horoscope warning that the only recourse to having "the worst day of the decade" might be to spend it with a friend, Katrielle decides to spend the day with Emiliana at a local café, unaware that the adroit analyst has her own plans. Emiliana challenges Katrielle to play at guessing the professions of their fellow customers, pitting the former's highly professional profiling skill squarely against the latter's esoteric and impulsive investigation methods.
Director: N/A
Writer: N/A
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Katrielle and the Strange Spirit Photo
Season 1 Episode 41 - Aired 1/27/2019
In the wake of discovering a recurring phantom figure appearing in his images, London Times photographer Pete contacts the Agency, fearing that he has fallen victim to a curse.
Director: N/A
Writer: N/A
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Great Detective Sherl O.C. Kholmes
Season 1 Episode 42 - Aired 2/3/2019
Tired of being treated like the Agency dogsbody, Sherl jumps at the chance to conduct his own investigation into the reported death of a beloved member of the neighborhood pack.
Director: N/A
Writer: N/A
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Katrielle and Horror Castle VR
Season 1 Episode 43 - Aired 2/10/2019
The Agency trio are recruited by an old client with the goal of completing a challenging "virtual reality game".
Director: N/A
Writer: N/A
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Katrielle and the Superman Chef
Season 1 Episode 44 - Aired 2/17/2019
After an incident involving a misunderstood "all-you-can-eat" restaurant opening and Katrielle's insatiable appetite, the eager investigator accepts the offer of a cook-off challenge to settle her debt.
Director: N/A
Writer: N/A
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Katrielle and the Ghost Club
Season 1 Episode 45 - Aired 2/24/2019
Supernatural superfan Andrea, youngest of the seven millionaires, invites Katrielle and a selection of her acquaintances to compete in a game of "Ghost Escape".
Director: N/A
Writer: N/A
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Katrielle and the Hundred Faces of Mona Lisa
Season 1 Episode 46 - Aired 3/3/2019
The Agency trio's trip to the Marylebone Museum of Art to see the famous Mona Lisa takes a strange turn when Katrielle is informed that the museum's entire collection has been surreptitiously replaced with an array of Lisa-centric works.
Director: N/A
Writer: N/A
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The Millionaire Ariadne's Conspiracy (1)
Season 1 Episode 47 - Aired 3/10/2019
Receiving an invitation addressed to her father requesting attendance of a puzzle-solving event hosted by the mysterious Ariadne, Katrielle and company find themselves reunited with all seven of the renowned London millionaires at the deserted mansion of a deceased magnate.
Director: N/A
Writer: N/A
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The Millionaire Ariadne's Conspiracy (2)
Season 1 Episode 48 - Aired 3/17/2019
With the realisation that the Seven are hiding a secret, Katrielle's investigation takes an unexpected turn, and as she pieces together the mystery, the true identity of their host is revealed.
Director: Daisuke Shimamura
Writer: N/A
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Professor Layton and the Relics Treasure: Episode 5
Season 1 Episode 49 - Aired 3/24/2019
In the wake of having located Luke and the Professor, Katrielle's investigatory instincts refuse to let her rest, compelling the team to follow the trail of the mysterious "Aldebaran" to his palatial home in search of answers.
Director: N/A
Writer: N/A
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Professor Layton and the Relics Treasure: Final Episode
Season 1 Episode 50 - Aired 3/31/2019
The two parties united at last, their long journey comes to a climactic conclusion in a fateful showdown at the Greenwich Observatory with the man behind the entire conspiracy.
Director: N/A
Writer: N/A