This is MASA.
Episode 8 of "ULTRASEVEN X," "BLOOD MESSAGE," aired on November 23, 2007.
On a stormy night, a series of bizarre murders were committed by a woman in a red coat.
All of the victims were drug dealers for a drug syndicate led by a man named Sameo.
In front of Jin and the others, the woman transforms into the vicious alien Hypnas and continues to commit crimes.
The name of Agata Kyousuke, whose wife was murdered by Sameo, comes up in the investigation, but...
This episode is a bizarre horror story with lots of blood splattering, befitting a late-night broadcast.
Kyousuke is played by Kuroda Yuki, who played Shimura Junichi in the "Ken" film, and gives an impressive performance.
Will he be able to figure out the shocking development at the end on his first watch?
Incidentally, Hypnas occasionally appears as a mob character in New Generation.