Whodunnit?

12 unsuspecting guests show up to a dinner party hosted by an unknown owner of the house. It isn't until someone dies that they realize this is not just a dinner party. This, is the night of their lives. One of the guests who showed up owns the manor and they're picking off guests 1 by 1. After each murder, the remaining guests must decide to either check the body, check the scene, or check the last known whereabouts. Then, they must go through riddle upon riddle to solve more of this case. If their answer is correct, they're spared another day. But, if it is totally false, they're scared and that night might be their last. Murder after murder, they will finally find out Whodunnit.