establish on a detective novel, the movie is about a investigator who by chance involve in battle between hunter treasure and old-timer. Bridget O’Shaughnessy hire Sam Spade and his spouse to happen her sister.After that, Sam’s spouse was kill. Sam investigate that O’Shaughnessy was not guiltless. She and many people belongs to underworld that try to take the a invaluable ancient statue-The Maltese Falcon.