A young man and his three younger siblings, who have kept secret the death of their beloved mother in order to remain together, are plagued by a sinister presence in the sprawling manor in which they live.
Marrowbone (Spanish: El secreto de Marrowbone, lit. "The Secret of Marrowbone") is a 2017 English-language Spanish drama horror film written and directed by Sergio G. Sánchez. It stars George MacKay, Anya Taylor-Joy, Charlie Heaton, Mia Goth, Matthew Stagg, Kyle Soller, Nicola Harrison, and Tom Fisher. It was screened in the Special Presentations section at the 2017 Toronto International Film Festival. The film was released in Spain on 27 October 2017, by Universal Pictures.
In May 2016, it was announced Sergio G. Sánchez would write and direct the film, with J.A. Bayona executive producing, alongside Belen Atienza producing. In July 2016, Anya Taylor-Joy, Mia Goth, George MacKay and Charlie Heaton joined the cast of the film.