Oh, it's really not that it's impossible, so much as nobody'd believe it. Except, y'know, those that actually saw what was going on.

[The summary is rather bewildering, which is why Gumshoe couldn't make sense of it. A TV announcer by the name of Mayumi Yamano appeared hanging from a telephone pole one foggy morning, dead, and with no signs of what had killed her anywhere on her body. A few days later, the body of Saki Konishi, the high school girl who had found the body, appeared in similar circumstances; the only difference being that she was found up on a TV antenna.]