Nick and Nora Charles, with Nickie Junior and Asta in tow, investigate the murder of Colonel MacFay in this third ’Thin Man’ film, based on the story by Dashiell Hammett. Director W.S. Van Dyke; stars William Powell, Myrna Loy, Virginia Grey, O tto Kruger, C. Aubrey Smith, Sheldon Leonard. Loew’s Incorporated.