Society sleuths Nick and Nora Charles investigate a murder aboard a floating casino. Nick and Nora Charles are attending a charity benefit aboard a gambling ship. After a murder occurs, suspicion falls on Phil Brant, who had argued with the victim earlier in the evening. When Phil and his wife seek help from Nick and Nora, Nick refuses to get involved. But when shots are fired outside his own apartment, Nick begins to investigate, and he soon finds himself in a confusing case with numerous suspects. Nick and Nora Charles were the ultimate screen couple, husband and wife detectives, always in step and never missing an opportunity to outwit one another as they solved each crime, which they did just in time for the movie's ending. Myrna Loy was a fantastic Nora, the ideal wife and considering she made 14 movies with William Powell, she made it look like they were really married. The Thin Man movies, all six of them, played more like sophisticated screwball comedies than murder mysteries, and their comic banter enhanced the proceedings. Their little wire-haired terrier, Asta, quite often stole the scene as he helped sleuth out the guilty party. He was a great little actor and rumor had it that away from the Thin Man movies, Asta was really Skippy. However, the six Thin Man movies credit this cute pooch as "Asta."
Sune and his family travel to Greece on holiday. but a lot goes wrong.
1927年以蒋介石为首的国民党反动派背叛了孙中山先生“联俄、联共、扶助农工”三大政策，并对共产党人实行大肆搜捕屠杀的背景下，中央为恢复我党在南方各省的党组织而委派时任中央秘书长的张文彬同志到广东发展党员、恢复建立党各级组织、建立工农武装积极开展抗日斗争。
穆蓉的傻丈夫景天被警察认定为鱼肠胡同血案的凶手而被捕，尽管穆蓉哭天抹泪的跟警察解释，景天平日里见到老鼠都怕得要死，不可能是杀人犯，然而警察们还是不由分说的带走了景天。景天糊里糊涂的被关进了审讯室，警察局里的人近日来都忙着去调查城中最大的钱庄德阳号被洗劫的案子，没人愿意跟一个傻子多费口舌。于是在几个警察的连吓唬再哄骗之下，景天很快承认了自己就是杀害那名女子的凶手。向警察解释没有用，穆蓉决定用自己的方式去帮丈夫洗清冤屈……
