Curse Of The Dog God - 1977 - 6/10
AKA - Inugami no Tatari // 犬神の悪霊

Three men, racing down the backroads, Geiger counter suddenly clicking like mad.
So excited, they accidentally smash into a small shrine, then run down and kill a dog.
Yes, they brought this on themselves. Even though they are ignorant for a while.
Nevertheless, one marries a village girl who soon realizes her husband is under the curse.
Trying to protect him drives her insane, and she is possessed.
Above, the husband about to succumb to the intruder inhabiting his wife.
Twin evils throughout: ancient curse, modern uranium. Village superstitions, motorcycle thugs.