The well-known brunette, 40, donned a latex mask with a sinister mop of curly white hair for the video, which was posted to her Instagram page.
'Hello. And welcome to my house,' she says eerily in the clip.
So did you guess who it was?
The woman behind the mask was none other than convicted drug smuggler Schapelle Corby – who appeared to be getting well and truly into the Halloween spirit on Tuesday night.
A separate spooky video posted to her Instagram Stories showed an unidentified figure in black appearing from around a cupboard, wearing a similarly terrifying mask and blonde pigtails.
Recently, Schapelle’s social media accounts have set the rumour mill on fire with whispers she may be pregnant.
Even though her soulmate Ben Panangian remains in Bali, an Indonesian friend of Schapelle's has said the pair were actively trying to conceive a baby before she returned to Australia in May.
Days ago, Schapelle posted a photograph of herself sitting in a giant bird's nest - in the Bendugul region of Bali - alongside the simple, cryptic caption: 'Nesting.'
One commenter posted: 'Is this a hint you're pregnant Darl?'
While another asked: 'Bun in the oven?'
Another cheeky fan even speculated that Schapelle could be expecting twins, writing: 'Laying an egg? or 2.'
Read more about Schapelle’s baby talk in this week’s issue of New Idea - out now!