An Episcopal Bishop, Henry Brougham, has been working for months on the plans for an elaborate new cathedral which he hopes will be paid for primarily by a wealthy, stubborn widow. He is losing sight of his family and of why he became a churchman in the first place. Enter Dudley, an angel sent to help him. Dudley does help everyone he meets, but not necessarily in the way they would have preferred. With the exception of Henry, everyone loves him, but Henry begins to believe that Dudley is there to replace him, both at work and in his family's affections, as Christmas approaches.
八公（Forest 饰）是一条谜一样的犬，因为没有人知道它从哪里来。教授帕克（理查·基尔 Richard Gere 饰）在小镇的火车站拣到一只走失的小狗，冥冥中似乎注定小狗和帕克教授有着某种缘分，帕克一抱起这只小狗就再也放不下来，最终，帕克对小狗八公的疼爱感化了起初极力反对养狗的妻子卡特（琼·艾伦 Joan Allen 饰）。八公在帕克的呵护下慢慢长大，帕克上班时八公会一直把他送到车站，下班时八公也会早早便爬在车站等候，八公的忠诚让小镇的人家对它更加疼爱。有一天，八公在帕克要上班时表现异常，居然玩起了以往
