“There’s no more music in me. No more dreams in me,” says Grace Kaufman in a new trailer for “The Sky Is Everywhere.” “I’ve lost the one person on earth who understood me.” An adaptation of Jandy Nelson’s 2010 YA novel of the same name, Josephine Decker’s Apple TV+ film tells the story of Lennie (Kaufman, “Man with a Plan”), a 17-year-old girl mourning the loss of her older sister.

Though Lennie dreams of living like her sister did, “with daring, and spirit, and so much joy,” the musical prodigy is overcome with grief. She finds herself drawn to Joe (Jacques Colimon, “The Society”), a new classmate, as she simultaneously gets closer to Toby (Pico Alexander, “Dickinson”), her sister’s devastated boyfriend.

“With Joe, I feel so very alive, but when I’m with Toby, there is someone with me in my grief,” Lennie explains.

Decker’s credits include Elisabeth Moss-starrer “Shirley,” a portrait of horror writer Shirley Jackson, and “Madeline’s Madeline,” a psychological thriller about a theater student played by Helena Howard.

“The Sky Is Everywhere” hits select theaters and Apple TV+ February 11. Nelson penned the script.