Stuttering Darby is never perfect enough for her mother.
Justin's been silent since his dad died.
Naz is struggling to learn English.
But after they meet at summer camp, mysterious calliope music from an abandoned warehouse grants them power to communicate without words.
When they sneak inside, the dark, empty space bursts into a magical carnival.
They're greeted by the ghost of Leroy Usher, who asks for their help convincing his family to restore the carnival to its former glory.
In return, he .