Legends of the Poisonous Seductress: Vol One: Female Demon Ohyaku (1968)

The first Poisonous Seductress film is the only one of the trilogy to be shot in black and white. It begins as tragedy and continues on the same path. It's the story of Ohyaku, a strong female that may be beaten physically but is never beaten emotionally or spiritually.
It's often cited as being one of the first ever Pinky Violence films, and while it's clear to see why that is, it's not as gratuitous or as purposefully titillating as most subsequent exploitation was. Each violent act is earned by the recipient's own evil deeds. Even so, Ohyaku's final, sadistic moment of revenge is shocking stuff, especially for 1968.

3½ dangerous bridges out of 5