The Rotting Woman 1997
After she was attacked by zombies, a woman escapes and shuts herself up in a bathroom.

Kichiku: Banquet of the Beasts 1997    star_border 5.2
While the leader is in jail, his leftist group is controlled by his girlfriend, but her leadership lacks conviction and perspective. When the leader commits suicide in prison, despair and confusion rule the group and revenge and violence erupts in graphic way.