A high school teacher, struggling to keep up with today's youth and estranged from his only son, receives the news about a terrible accident that left his son in a coma. Wanting to know more about his son's life, he finds out that he's been working as a producer for a new underground idol group who are now left without a guiding hand.
A group of high school students are forced into a game where they are hypnotized to commit suicide on an unknown command. Where no one is safe from a sudden death, how can they avoid their fates?
A documentary about Japanese idol group Nogizaka46. "A method to forget sadness" will show how the Nogizaka46's members were, how they really felt, and how they strived while facing the cruel world of showbiz. How were their lives off the screen? Well, find out by yourself.