At the beginning of the episode, you see and hear a harpy of a wife screaming and nagging her husband incessantly. While they are in the middle of a lake, the guests at this resort can all hear the commotion and the wife seems like the most godawful woman. Well, as the guests look on at the caretaker being harangued by his wife, the woman unexpectedly stands up in the rowboat they are in and the boat begins to rock. He stands up, possibly to get her to sit to the boat doesn't capsize...and she falls overboard. He seems to use the oar to try to save her (as neither can swim) and soon the woman drowns.
Here is the problem. All the witnesses agree that the wife was a godawful mess....but some think they witnessed him striking her deliberately with the oar and murdering her. Some think he was innocent and the wife's nutty actions resulted in her death. Barnaby is called in to figure out the truth...and at first, he, like the rest, is fooled.
The story idea is generally very good. However, in one scene where the husband and his girlfriend are having dinner, this is a serious mistake. Why would the woman be wearing the wig during this dinner? This makes no sense....and you'd think such a wig would have been disposed of as soon as possible. It just defies common sense...especially when the man behind this scheme seems very smart and planned everything else so well. Without this scene, I'd give this one a 9..with it, a 6 because it really undermines the story.