An affluent medical professor, Komiya, and his bossy wife, Tokio, are to look after Setsuko, their high-spirited niece from Osaka. Setsuko is a liberated woman who does what she wants, including smoking, even though she is a minor. On Saturday, the professor does not feel like going to his weekend golf game, but his wife packs him off anyway. So he leaves his bag at the apartment of his student Okada, and goes to a bar with a friend. Setsuko traces him there, and insists that he take her to a geisha house. When she gets rather tipsy, the professor calls Okada to take her home, while he sleeps at Okada's. The wife becomes suspicious of Setsuko when she sees Okada bringing her home, and also of her husband when she discovers that he did not go golfing.
土匪雇佣了超级飞行员卡基斯来对付罗森。卡基斯在决战中利用发动机故障击落了罗森。当罗森乘坐飞机去老朋友比科洛家修理时，他遇到了比科洛的孙女菲奥。菲奥帮助罗森修理了飞机，他们两人再次飞上蓝天，对付空中强盗。就在这时，卡基斯出现了，并对菲奥一见钟情。为了争夺菲奥的爱情，卡基斯向罗森提议决斗。于是，他们两个再次沐浴在血蓝色的天空中。
