That's an anime so if you aren't a fan no need to read further, So far it's phenomenal. It's been extremely satisfying to watch both visually and in terms of plot. Unless they pull a Mass Effect this anime will easily be one of my favorites. The concept for the show is that 15 kids are stuck in a school and their only way to escape is to murder someone else without being caught. If someone succeeds in this task they leave the school but the other 13 kids are killed. If they are caught only the murderer and the original victim are out of the game. I don't want to go to much into detail because by episode 2 you already hit major spoilers. If you decide to watch it I'd recommend not to get attached to any charcters to quickly. They begin dropping like flies almost immediately.