Kyukei no Koya.

Based on novel 1962 "Kyukei no Koya" by Seicho Matsumoto. A serial murder occurs around the heroine Kumiko because she finds evidence that her father, who should have died, was "alive." Set in 1945, near the end of WW II, Kenichiro Nogami is reported to have died in a Swiss hospital. In fact, he is working behind the scenes to save Japan from destruction. For this cause, Kenichiro Nogami has left behind his wife and nation to work in hiding.