The main character is a very well known otaku in his school.
He watches one of "Hypnosis in heat" series at home. He loves this series which stars Mr. Zow who hypnotizes a girl on the street and makes her a porn actress.
But this time, the show seems to be a bit different.

With the video, he gains a strong hypnotic power and starts to control women around him!

[From DLsite English]