Kunikida is being held for a murder that Rampo is certain he didn't commit. Meanwhile, Poe is determined to solve a murder mystery that has had the poilce stumped. Rampo has some thoughts on that situation, too.
The murderer had two motives: 
revenge and money.
.لدا القاتل دافعان: الانتقام والمال
Der Täter hat zwei Motive.
Hay dos móviles. Rencor y dinero.
Hay dos móviles. Rencor y dinero.
Le coupable a deux mobiles :
la vengeance et l’argent.
L'assassino aveva due moventi, vendetta e denaro.
O assassino tinha dois
motivos: vingança e dinheiro.
У убийцы было два мотива:
месть и деньги.