Akuto

Akuto , Akut? , literally bad man is a 1965 Japanese film directed by Kaneto Shindo starring Kyoko Kishida. It is based on a story by Junichir Tanizaki.

A servant of Rokuro Taiji Tonoyama kills the wife because she cannot bring herself to commit suicide. Finally Jiju brings the head of the woman back to the court of the bad man. She holds up the head and starts laughing. The decapitated head smiles.

Source: Wikipedia