Secret societies... They claim that they don't exist, yet there is evidence of them all around us. Cicada is one of those, its only access is through a bunch of clues left by hackers in plain sight... for those who know where to look. The clues are a series of puzzles that must be solved to access the information. Only an elite few can solve the clues and find Cicada. There are those watching the ones who are following the breadcrumbs. There's no limit to the extent that those in power will do to find these secret societies. When they are located by the select few who can distinguish and decode the clues, they have the whole world at their fingertips. Each of these societies has its own secrets that they will protect at any cost. When the one who got through to Cicada is interrogated by those in power, what he chooses to reveal (or not reveal) will determine his future. Once what is known is revealed, the reality of the situation becomes apparent. Come prepared for what is revealed, but understand it's not gonna make sense unless you've paid attention to every detail along the way.
There's a bonus scene in the credits that you'll want to stick around to experience.
"The work of a private man who wished to transcend, he trusted himself, to produce from within."
What does the linked image's hidden message spell out?