Plants from the Dunes (1964)

Ichiro is obsessed with the idea that his wife had an affair with his deceased father for whom she modeled as a teenager. In search of the truth, he stumbles into an unsettling affair with Akiko and her sister. This very experimental and sexually explicit film is based on a novel by Junnosuke YOSHIYUKI, who was inspired by the Paul Klee painting of the same name. It foreshadows the Nikkatsu genre "Roman Porno", which helped Nikkatsu avert bankruptcy.