Pinkie had fought a demon inside her for a very long time and she gets caught one day, but not knowing what is happening she finds that her imaginary friend was murdering Innocent ponies brutally, she finds out that she did horrible things to her friend Dash, she looks for help but is only greeted by hate and disgust, Pinkie one of the most social ponies is rejected at every turn but she hopes to help her friend from the brink of insanity. On the way she develops a unwanted romantic entanglement with her friend but she doesn't care because all she wants is a friend.