A group of boys and girls settle in a country house. One of them writes a novel while the others try to become a gang and prepare a robbery: some fall in love, or seems to be, or believe they are in love. However, these two, three, ten plot lines unfold from what the characters hide or just don’t know. With a sense of humor and play that is both the characters’ and the film’s, They All Lie superimposes plot lines as if it were a tapestry from which a part is constantly hidden, revealing it later and changing its meaning.