Blood Type: Blue 1978

The terror of witnessing the UFO! Damned as outcasts with blue blood!

Directed by Kihachi Okamoto

UFOs appear on Earth, and people who actually see them suddenly find that their blood has turned blue. Soon panic and hysteria result in the new "blue-bloods" being persecuted by the rest of mankind, and eventually certain all-too-familiar measures begin to be taken against them.