Nine seemingly unrelated strangers were kidnapped into a house. A priest, a policeman, a dancer, a composer and his wife, a fashion designer, a tennis star, a prisoner, and a black man. In desperation, he launched a game of killing each other's lives: nine people were caught in a closed room with no exit, and were told: willing and unwilling to start a human nature game war with each other. The only person alive can walk out of the room and get a reward of $5 million, but it also means killing eight other people, so a series of human exposures begin in the midst of despair and hope. In the face of money and interests, people always can't hold it. When the last person thought the game was over and walked out of the house with 5 million, he walked into another abyss. How on earth will they choose?