MCF: A Musical Nightmare is a Mystery Case Files story written by Subuku No Jess. It is the first Halloween related Mystery Case File story.


On Halloweeen, Mafiafas accidentally creates a giant haunted Ipod, making everyone sing in song. Now with the device, he plans to take over the world. Will the Mystery Case Files prevail or this will be their last Halloween forever?

Characters that appeared

  • Jessy
  • Raina
  • Tracy
  • Emmy
  • Starz
  • Bella
  • Daisy(cameo)
  • Jackson Jekyll/Holt Hyde
  • Marshall Lee
  • Wormy
  • Lock, Shock and Barrel
  • Audrey II/Twoey(neutral character)
  • Cedric Diggory
  • Aaron1248 aka Aaron
  • Riku
  • Seamus Finnigan
  • Seymour Krelborn
  • Audrey Fulquard Krelborn
  • Jack Skellington
  • Othello Reaper Boogie
  • Princess Emeraude
  • Naruto
  • Temari
  • Kankuro
  • Gaara/Shukaku
  • Flippy
  • Kiky731 aka Kiky
  • Maverick
  • Alex
  • Eden
  • Jiggly(debut)
  • The Predators of Predator Island
  • OogieJess Hyde
  • Tracyhyde



  • Mystery Case Files Theme Song (To the Tune of Monster High Theme Song)- MCF
  • Mmm Mmm Mmm Mmm (Crash Test Dummies)- Bella, MCF except Jessy
  • Thump Thump (From "Blowhole Strikes Back)- Lock (briefly)
  • Real and Scary (From the "Fairly OddParents'" Halloween episode)- Jessy, MCF, Bella, Jackson, and Monsters
  • It's a B-Movie Show (From "The Brave Little Toaster")- The Hyna Squad, Bella (Disguised as Jack Spicer), MCF
  • My Little Supper (Lullaby from Emmy's "Emmy and OogieJess' Vore Adventures)- Jessy using OogieJess' voice
  • The Jessy Song (Marceline's "Daddy, You Ate My Fries" song from Adventure Time "It Came From The Nightosphere")- Emmy
  • What the Heck is That? (From "Blowhole Strikes Back")- Everyone
  • Music Player (Julien's Music Player from "Blowhole Strikes Back")- MCF, Lock, Shock, and Barrel
  • Everybody Must Sing (From "Blowhole Strikes Back")- Tracy, Starz, Raina, and Mafiafas
  • Brand New Plan (From "Blowhole Strikes Back")- Mafiafas
  • I'm the Music Slayer (I'm The Music Meister from "Batman: The Brave and The Bold")- Damien the Haunted Ipod and Main Cast
  • ET (Song by Katy Perry)- Jessy and OogieJess's Voice (briefly)
  • Premonition Song (Sally's Song from "The Nightmare Before Christmas")- Princess Emeraude, Jessy, and OogieJess (briefly)
  • Heaven On Your Mind (Heaven on Their Minds from the musical "Jesus Christ Superstar")- Bella (as Gaara), Naruto, and Half Shukaku-Gaara
  • Dual Power Ballad (Porpoise Power Ballad from "Blowhole Strikes Back")- Mafiafas, Kiky/Evil Kiky, Evil Billy and His Robots (as back-up), Temari and Audrey II (briefly)
  • I Will Survive (by Gloria Gaynor)- Jessy and OogieJess' Voice
  • Survivor (by Destiny's Child)- Jessy, Twoey, Mini-Twoeys, Shadow, and OogieJess
  • It should be noted that this page will be frequently updated as the author updates the story that has songs in it.


  • This is one of the longest MCF stories. This is also the first written by Subuku No Jess.
  • This is also the first Halloween MCF story.
  • This story takes place chronologically before Daisy became a MCF member, but she made a cameo appearence. Also, since Elisa Maza wasn't revealed as Jessy's biological mother in the story, but she makes an appearence in her cloak.
  • The case is based on the Penguins of Madagascar episode "The Return of the Revenge of Dr. Blowhole" and "Batman: The Brave and the Bold" episode "Mayhem of the Music Meister".
  • This case is inspired and can be seen as a sequel to trachie17's own Mystery Case Files parody of the same Penguin of Madagascar episode "The Return of the Revenge of Plantara" Which stars Tracy as Skipper and Plantara as the evil Doctor Blowhole.
  • This marks the second appearence of OogieJess and Tracyhyde together in a fanfic the first time is in a parody of Monsters Inc with OogieJess playing the role of Sulley and TracyHyde playing the role of Mike respectively.
  • Originally in the chapter 'To Survive' both OogieJess and TracyHyde were supposed to appear in the chapter together and have a few songs together. But the author decided to move it to the next chapter because it was going to be long. However Tracyhyde made a brief appearence near the end of the chapter, transforming into her.
  • This is one of the few cases that has a dark theme. Starting with chapter 7, the author placed in themes that she wanted to show in the story.
    • Memory Loss- Throughout the story, Jessy is trying to recover all of her memories.
    • Perfection- The main theme to the story and it revolves mostly on Damien.
      • This includes with the reality idea of getting the newest and latest thing on the market.
    • Grudges/Revenge- Damien's motivation is to punish everyone who didn't appreciate him. Also, he loathes OogieJess for some reason.
    • Responsibility- During the "Heaven On Your Mind" scene, Bella, Gaara, and Naruto talk to Jessy about being blinded by becoming a great hero and thinking too much about Emmy.
    • Death- There are many hints in the story that Jessy/OogieJess might die with Damien aiming to kill her.
  • Since the author has planned most of the story out, she intends to keep on writing it until it is finished.
  • In one past poll, this story has been a fan favorite out of all of Subuku No Jess' stories.