Pinkie Pie was turned into a vampire when she was little. She grew up, hiding her secret without a problem, but her nature still haunts her, especially after a murder occurs in Ponyville. Will the detective from Canterlot uncover the truth about Pinkie? And what is that dark voice in Pinkie's head doing while she's unconscious?

A big thanks to InquisitorM for editing and to Dracmatais for the original idea.
Original of the picture found here. (Picture will be taken down if the artist requests it.)
Picture edited to one more relevant by Dragonridergoku.