[3] Mr. Nagumo, a wealthy landowner, reportedly died in a plane crash in Aikadawa Valley, but his sister Misako Kayama knows that he was a good pilot and suspects that there was foul play.

When the farmer living there, Mr. Ueda, refuses to agree to the takeover, Kido sets an exorbitant monthly rent of 600,000 yen to squeeze him out.

A young drifter named Goro Saionji, a private detective hired by Shinnippon Kaihatsu to investigate Mr. Nagumo's death, stumbles upon the conflict when he sees Mr. Ueda's daughter Chikako being attacked and saves her.

Goro sneaks into Kido's place and confronts his girlfriend with a bottle of her German nail polish that he found at Mr. Nagumo's crash site.

Kido begins throwing lit sticks of dynamite but when he is shot he drops one back into the box, causing a massive explosion and killing his men.