The story of two teenage brothers who lose their single-parent mother to an overdose, Thompson’s film has distant echoes of Ian McEwan’s The Cement Garden but is all his own when it comes to the sensual, brooding atmosphere. The older boy, Danny (Aaron Johnson, very good), buries his grief in drugs and sex. The younger, Jack (Thomas Grant, phenomenal) goes into denial, bringing his mother a breakfast tray each morning, dressing up a dummy (hence the title) in her clothes and putting it in her bed.