You are LightE Kogami, currently incarcerated for the murder of your wife. This might be a plot hatched by Locker, who has his own motives. Also, Locker has hired guards to make your life a hell in the prison. All the guards work for Locker now.
All of your actions will have a consequence in this game and you need to think a few steps ahead to get out of the pinch.
What you need to look up to the most in this game is the interrogation related chapter.
Clearing both outcomes of that will be difficult.
Game link: link