Shutter Island is a best-selling novel by Dennis Lehane, published by Harper Collins in April 2003. A film adaptation was released in February 2010. Lehane has said he sought to write a novel that would be a homage to Gothic settings, B movies, and pulp. He described the novel as a hybrid of the works of the Brontë sisters and the 1956 film Invasion of the Body Snatchers. His intent was to write the main characters in a position where they would lack 20th century resources such as radio communications. He also structured the book to be more taut than his previous book, Mystic River.