Quoth the Karasu, "nevermore".
The man who brought detective stories to Japan was an author named Edogawa Ranpo (say it quickly and you'll get it.) The real name of Edogawa Rampo is Hirai Taro. He was born in 1894 in Nabari, Mie of Japan and died in 1965. I read some of his short stories back when I first got here and they are truly bizarre.
Several of his works have been made into movies or shorts and here is one of them for your viewing pleasure. It's sort of a Dr. Moreau done Japanese style...
And by the way, karasu カラス is the Japanese for crow. They are freaking huge over here and are constantly into garbage bags spreading the refuse willy-nilly.