!!In the comic miniseries:
* NauseaFuel: Some sections are hard to get through, due to the intense combination of Eddie Campbell's artwork and Moore's disturbing subject matter. It even made [[NeilGaiman Neil "Scary Trousers" Gaiman (Master of Modern Horror)]] feel a little queasy.[[note]]To elaborate - Alan Moore once gleefully detailed the method of murder and organ removal to Neil Gaiman -- during dinner, no less -- who had to step outside to get some air so he wouldn't vomit. Twice.[[/note]]
** An entire chapter is dedicated to the murder of Mary Kelly [[spoiler:we think]] which in RealLife was the one where the murderer ''obsessively dismembered half the poor victim''.
* NightmareFuel: By the truckload. Every murder is shown and described in graphic detail. Gull himself becomes an in-universe NightmareFuelStationAttendant, inspiring both ''Literature/DrJekyllAndMrHyde'' and Creator/WilliamBlake's ''The Ghost of a Flea''
* TheWoobie: The chapter isn't called ''The Unfortunate Mr Druitt'' for nothing.
!!In the movie:
* AdaptationDisplacement: Most people had never heard of the comics before the movie was released.
* AlternateCharacterInterpretation: In the end, is [[spoiler: Abberline's death from opium overdose just an accident or does he kill himself because he can't ever see Mary again.]]
* TearJerker: "[[MadnessMantra I'm a queen! A queen!]]"