Mahiru no kirisakima

Yes, this is Directed by future Academy Award winner Yojiro Takita but that wasn't for about another 25 years.

This is the story of a magazine writer and photographer pursuing a serial killer. The story has been done before. The problem here is it gets sidetracked on its way to a surprise and stupid ending.

There is more than the normal number of sex scenes even for Pink Eiga including several with female masturbation. Most are not very erotic. None were necessary for the story. As it was 1984 when Adult Video was starting in Japan, IMO they threw in all the (of course simulated & non-explicit) sex scenes to compete with that market.

While this film started out good, the sex scenes interrupted the story and they stopped following the original plot. Very disappointing.