Plot Synopsis

Inspired by the book "My Invisible Sister" by Beatrice Colin and Sara Pinto. In New Orleans during Halloween, Cleo, an introverted young science prodigy, is working on a class project that accidentally turns her popular older sister and the school's star lacrosse player, Molly, invisible. Cleo, who has become accustomed to living in Molly's shadow, 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. As the sisters try to convince their friends, teachers and the lacrosse team that nothing is wrong, they must rely on each other like never before, and in doing so, they gain a better understanding of one another and themselves. Meanwhile, they are up against the clock to find an antidote to reverse the effects of Cleo's experiment before Molly's invisibility becomes permanent. This TV movie is part of "Monstober," Disney Channel's month-long Halloween-themed programming event.