"..if you enjoyed Oshimi's previous work with "Flowers of Evil", and you enjoy dark storylines with twisted characters, you'll no doubt enjoy "Blood on the Tracks"! Recommended!" - Neo Tokyo 2099 
Up on the hill, Seiichi's encounter with Shigeru merges with his own experience of being cast away by his mother, Seiko--and in that moment, he kills Shigeru in order to kill himself, a sacrificial rite to permanently sever his connection with his mother. Taken into custody, Seiichi feels only relief... 
But Seiko isn't gone from his life yet!!