Fukami, a secretary engaged to company president Kaido, her employer, is invited by his close friends, the Nogis, to a three-day-two-night tour. The tour group is traveling in a luxurious coach to Lake Megami in the Tateshina Plains. On the way, they are disturbed to hear that Shirai, a hostess who was supposed to come along on the tour, has been murdered. And the next day, the body of Hasegawa, another tour member, is floating in Lake Megami...
Yuki Kimura, a company president's secretary, agrees to marry his son Yutaka on the president's recommendation. When Yutaka breaks up with his lover, a hostess, she implies she's going to commit suicide. In a panic to get to her quickly, Yutaka punches a man at a taxi stand. The next day, when Yutaka's lover hears the news about a man dying and realizes it was the man Yutaka punched, she demands money...
Natsuko is witnessed carrying on an affair with her boss, Misawa, by the unmarried Chieko. However, Chieko dies by falling and is found about ten days later in the shrubbery in front of the company. It is revealed that Chieko led a flashy private life and frequented a host club. Moreover, it seems that she was having an affair with Division Chief Yamazaki.
Ninth movie in the Torakku Yarō series. Momojiro travels to Nagano to take Jonathan's place driving logging freight through the mountains. There he meets the wild and beautiful Natsu.
