'Kuro no Shamen" ("The Black Slope"), made in 1971, is one of the most famous thrillers in the history of Japanese cinema. On Sunday night at 9, TV Asahi presents a new TV adaptation of the tale.

Takashi (Neptune's Taizo Harada) is a hard-working employee of a major construction company. He has been married to Keiko (Rei Dan) for 10 years and they live in a beautiful home on the coast of Kanagawa Prefecture. From all appearances, they seem to have a perfect life.

However, both Takashi and Keiko, like most couples, hide things from each other. One day, Takashi comes home with a purple luggage bag, and seems out of sorts. When Keiko asks about the bag he gets defensive and tells her not to touch it. He says he suddenly has to fly to Kumamoto for business and takes the bag with him, but not before she sees him open it and notices it is filled with bundles of cash.