As part of its month-long Monstober Halloween-themed programming event, Disney Channel US has set an October 9 premiere date for its newest original movie, Invisible Sister.

The live-action movie, which stars Girl Meets World‘s Rowan Blanchard (pictured) and Paris Berelc of  Mighty Med fame, takes place in New Orleans during Halloween. Cleo (Blanchard) is an introverted young science prodigy whose class project accidentally turns her popular older sister and the school’s star lacrosse player, Molly (Berelc), invisible. Cleo is forced to step outside her comfort zone and into the shoes of her older sister to take her place on the day of an important game.

Invisible Sister is directed and executive-produced by Paul Hoen (How to Build a Better Boy, Camp Rock 2: The Final Jam), while Susan Cartsonis (The Duff, No Reservations) is also an executive producer.

With Invisible Sister, Disney will certainly look to emulate the success of its most recent original movie, Descendants. After its premiere telecast on July 31 attracted more than 10.5 million total viewers in Nielsen’s live +3-day ratings – making it the most-watched cable TV movie of 2015 and the top-rated telecast in two years for kids two to 11 and tweens nine to 14 – the movie has inspired a spin-off, animated short-form series, Descendants Wicked World, which bows next month.