One Must Die

You are invited... To the annual game where teenage competitors search Sky Manor for the key to open a vault hidden behind the deceptive walls. The winner will have the wealth of a lifetime, but there is one catch. One contestant must die. This year, seven people step off the zeppelin to compete. A banker's son. A rich gentleman. A nice girl. A poor shopkeeper. A gold digger. An outsider. A thief.
All have secrets of their own, and all have reasons to kill. When one player turns up dead, the other six find themselves in a game of cat and mouse, the murderer among them. Who will win, and who will die?