Strange Case
Season 6, Episode 4
Strange Case
Airdate October 16, 2016
Written by David H. Goodman
Nelson Soler
Directed by Alrick Riley
Episode Guide
The Other Shoe
Street Rats
Strange Case is the fourth episode of the sixth season of the American fantasy drama series Once Upon a Time, which aired on October 16, 2016.

In this episode, the origins of Jekyll and Hyde with its ties to Rumplestiltskin are revealed, as Gold seeks vengeance to stop Hyde from threatening Belle, while Snow welcomes a new assistant who came from the Land of Untold Stories, who has an agenda of her own to deal with.

View the Strange Case Gallery.


Opening sequence

The Elizabeth Tower (known more commonly by the name of the bell it houses, Big Ben) is featured in the forest.

Event chronology

The Victorian England events take place at an unspecified time, years before Alice is released from the Bethlem Asylum in "Down the Rabbit Hole", this story also takes place after Belle becomes Rumplestiltskin's maid in "Skin Deep" and before Regina tells him Belle has committed suicide in the same episode. The Storybrooke events take place after "The Other Shoe".

In the Character's Past

In the Victorian England realm of story, Dr. Jekyll is joined by his friend Mary Lydgate, whose father, Dr. Lydgate, is a member of a prestigious science academy, as he hopes to convince him to back his project that he created, a serum that separates personalities, only to be rejected. The experiment would later attract the attention of Rumplestiltskin, who suddenly appears and helps Jekyll perfect the serum, and when Jekyll drinks it, he transforms into Hyde for the first time.That night at a party, Hyde, with the help of Rumplestiltskin, confronts Mary’s father and threatens to expose the truth about him sleeping with his lab assistant if he doesn’t grant Jekyll his membership into the academy. In the morning, Jekyll wakes up and remembers nothing but finds himself to be an academy member.

Later on, Rumplestiltskin's influences Jekyll to become Hyde again, this time to win over Mary, revealing that Jekyll has strong feelings for her, but she admits that she isn’t interested in the same way and wants a man who wants to embrace passion without getting rid of it, and the two kiss. The following morning, Jekyll and Mary are waking up in bed together and are shocked by the outcome, as Jekyll tries to convince her that he is Hyde, but Mary is upset that Jekyll tricked her and tries to run away, prompting an angry Jekyll to push Mary out of the window and to her death. Realizing what he has done, Jekyll drinks the last of the serum and escapes as Hyde.

In Storybrooke

At the Pawn shop, Gold is looking in the mirror and sees his hair as he prepares to cut it, giving him a more crew cut appearance. He is soon visited by the Evil Queen and Hyde, who demanded a necklace. As Gold choked Hyde, he learned that he cannot be killed by The Evil Queen, although she tells Gold that their deal to protect Belle and the baby is still in effect. When news leaks of Hyde escaping the hospital, this suddenly disrupts the normally for David and Snow, as well as for Emma and Hook, who is ready to move in with her. When Regina and Jekyll shows off the necklace, they soon discover that the serum will be vital in defeating The Evil Queen and Hyde. With Hook having moved out of the Jolly Roger, he gave Belle a magical seashell to use as an emergency, but Gold later stopped by to ask Belle to offer her protection. After Belle refused, Gold placed a protection spell on the ship in order to prevent Belle from leaving and keep Hyde from entering. Later on, Regina asks Gold for help, only to discover the Evil Queen and Hyde have already destroyed the lab and Jekyll is left unconscious, but the ambush does leave a splatter of the serum, prompting Gold to steal Jekyll’s heart, then pours the serum onto his dagger that will be useful in killing Hyde. As Gold leaves, he tosses Jekyll’s heart back to Regina, who then sends him to the Jolly Roger to stay with Belle.

In the woods, David and Emma find Hyde, and this time he is ready as he overpowers them almost immediately, only to have Gold come out of nowhere and stabs him in the heart with the serum-covered dagger, but that fails as well, as Hyde tells Gold that he switched serums with Jekyll earlier, then takes the Dark One’s dagger and uses it to control Gold to take him to Belle. When the two appeared in front of the Jolly Roger, Hyde says that there is one final twist. It turns out that that Jekyll is actually the ruthless one, as his aggressive behavior starts to worry Belle as she attempts to use the seashell to contact Hook but Jekyll breaks it, and her attempt to escape is prevented by the protection spell, and only Gold and Hyde can do is look on. Fortunately, Hook arrived just in time to save Belle by not only killing Jekyll, but also killing Hyde. Realizing that the same thing can happen because Jekyll and Hyde are still the same person, and therefore likewise with her and the Evil Queen, Regina ask Emma to "do what is necessary" to keep from returning to evil, while an angry Belle confronts Gold about his deal with Hyde. He reveals that, back when she was a slave in his castle, he was worried about the feelings he had for her. Gold sought out Jekyll to see if his serum could rid people of "weakness," but when his experiment failed, he angrily banished Hyde to the Land of Untold Stories. Belle is still distrustful with Gold, but he insists she will need him to protect their child, claiming that “necessity” will make her love him once again.

Back at Storybrooke Elementary School, Snow resumes her role as teacher, and introduces her new assistant Shirin to the class. Realizing that the students are struggling, Shirin suggests that Snow embrace her past to inspire them. Taking a cue from Isaac Newton, Snow uses her experience as an archer and the students are in awe, winning her confidence with them. At the end of the school day, Shirin later meets up with the Oracle, where they are coordinating plans to search for Aladdin, as Shirin is revealed to be Princess Jasmine.

Cultural References

  • Mary Lydgate is based on Valerie Martin's novel Mary Reilly from The Strange Case of Dr. Jekyll & Mr. Hyde


  • Gold cuts his hair at the start of this episode. This was incorporated into the story because the actor had to cut his hair for a feature film (T2)
  • This is the first we see of Henry's girlfriend, Violet, since the season 5 finale.
  • The episode title is a reference to the book The Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson
  • The object/animal/person in this episode is Big Ben clock tower in London.
  • Mary's father, Dr. Lydgate, is the same actor/character that wanted to perform a lobotomy on Alice in the pilot episode of Once Upon a Time in Wonderland.
Season 1
PilotThe Thing You Love MostSnow FallsThe Price of GoldThat Still Small VoiceThe ShepherdThe Heart Is a Lonely HunterDesperate SoulsTrue North7:15 A.M.Fruit of the Poisonous TreeSkin DeepWhat Happened to FrederickDreamyRed-HandedHeart of DarknessHat TrickThe Stable BoyThe ReturnThe StrangerAn Apple Red as BloodA Land Without Magic
Season 2
BrokenWe Are BothLady of the LakeThe CrocodileThe DoctorTallahasseeChild of the MoonInto the DeepQueen of HeartsThe Cricket GameThe OutsiderIn the Name of the BrotherTinyManhattanThe Queen Is DeadThe Miller's DaughterWelcome to StorybrookeSelfless, Brave and TrueLaceyThe Evil QueenSecond Star to the RightAnd Straight On 'til Morning
Season 3
The Heart of the Truest BelieverLost GirlQuite a Common FairyNasty HabitsGood FormAriel (Episode)Dark HollowThink Lovely ThoughtsSave HenryThe New NeverlandGoing HomeNew York City SerenadeWitch HuntThe TowerQuiet MindsIt's Not Easy Being GreenThe Jolly RogerBleeding ThroughA Curious ThingKansasSnow DriftsThere's No Place Like Home
Season 4
A Tale of Two SistersWhite OutRocky RoadThe ApprenticeBreaking GlassFamily BusinessThe Snow QueenSmash the MirrorFallShattered SightHeroes and VillainsDarkness on the Edge of TownUnforgivenEnter the DragonPoor Unfortunate SoulBest Laid PlansHeart of GoldSympathy for the De VilLilyMotherOperation Mongoose
Season 5
The Dark SwanThe PriceSiege PerilousThe Broken KingdomDreamcatcherThe Bear and the BowNimueBirthThe Bear KingBroken HeartSwan SongSouls of the DepartedLabor of LoveDevil's DueThe Brothers JonesOur DecayHer Handsome HeroRuby SlippersSistersFirebirdLast RitesOnly YouAn Untold Story
Season 6
The SaviorA Bitter DraughtThe Other ShoeStrange CaseStreet RatsDark WatersHeartlessI'll Be Your MirrorChangelingsWish You Were HereTougher Than the RestMurder Most FoulIll-Boding PatternsPage 23A Wondrous PlaceMother's Little HelperAwakeWhere Bluebirds FlyThe Black FairyThe Song in Your HeartThe Final Battle
Season 7
Hyperion HeightsA Pirate's LifeThe Garden of Forking PathsBeautyGreenbacksWake Up CallEloise GardenerPretty in BlueOne Little TearThe Eighth WitchSecret GardenA Taste of the HeightsKnightfallThe Girl in the TowerSisterhoodBreadcrumbsChosenThe GuardianFlower ChildIs This Henry Mills?HomecomingLeaving Storybrooke
Down the Rabbit HoleTrust MeForget Me NotThe SerpentHeart of StoneWho's AliceBad BloodHomeNothing to FearDirty Little SecretsHeart of the MatterTo Catch a ThiefAnd They Lived...
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