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A serial killer known as Cinderhella is on the loose and preying on Grizzly Lake High's student body. The principal is certain Cinderhella is a disgruntled student at the school and puts the likely suspects - including suicidal Riley, self-absorbed Ione, and hipster Clapton - in all-day (10:00 AM–10:00 PM) detention on prom night. Potentially trapped in a room with a murderer, Riley, Ione, and Clapton are forced to work together to stop Cinderhella from killing again, unaware that they're dealing with sinister supernatural forces.

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  • Movie ID 8602
  • Status Released
  • Released Worldwide March 16, 2011
  • Runtime 93 minutes
  • Genres Horror Comedy Science Fiction
  • Directors Joseph Kahn
  • Writers Joseph Kahn Mark Palermo
  • Spoken Languages English
  • Original Country United States of America
  • Production Companies Detention Films
  • Production Countries United States of America
  • On Other Sites IMDB Official Website
  • Favorited This movie has been favorited by 0 people.
  • Created March 26, 2019
  • Modified May 16, 2019

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