My Babysitter's a Vampire (2011)

Season 2: Episode 5

When Whitechapel High first put on a production of The Rainbow Factory, the star was tragically crushed on stage in a prank gone wrong. Twenty-five years later, the play is back, and Ethan and the gang have to handle a ghost with a thirst for revenge. Controlling Erica through a haunted dressing room mirror, the spiteful spirit attempts to bring the house down on opening night.