He starred in the Rian Johnson directed mystery thriller ensemble film Knives Out (2019) alongside Ana de Armas, Daniel Craig, Chris Evans, Don Johnson, Jamie Lee Curtis, Lakeith Stanfield and Michael Shannon. Plummer plays Harlan Thrombey, a wealthy mystery novelist whose family is celebrating his 85th birthday party when a death occurs. The film premiered at the 2019 Toronto International Film Festival to positive reviews. It was an immense box office success. It was selected by the American Film Institute and the National Board of Review as one of the top ten films of 2019.
