This game consists of four unique character decks and 1 game master deck. It can be played with just two character decks or 1 to 4 character decks and a game master deck. The goal for the characters is to escape from the Tomb of Vectra. The game master's goal is to kill the characters. Each deck has a number of rooms, items, monsters, npcs, traps and rule changes. Characters generally try to foil each other's escape.
The game is somewhat similar to Abduction, another great game by Eden Studios, but definitely also very different.