Pinkie is glum one day that nopony is available to play with her nor even do a single party due to specified reasons. Unknowingly to her, she is haunted by a strange phantom pony who has created a personal paradise for Pinkie, in which every one of her friends is just like her, even appearing to have Pinkie's cutie mark in their eyes as their pupils. At first Pinkie begins to accept this strange turn of events, till the party demands get quite a little out of control... Pinkie must find a way to get out of this nightmare, saving her friends who appear to be trapped somewhere in this haunted nightmare, all while trying to find the source of these terrible illusions, until she meets the phantom himself... The Niviniotta.