On a rainy night, four strangers were led to an abandoned gallery by a mysterious invitation, but they witnessed the tragedy of a living person nailed in a picture frame. The bronze key next to the body was engraved with the disturbing "1/12" mark - this became the beginning of their descent into an endless cycle of death.
Illustrator Shen Xinghe, detective Lu Chuan, insurance officer Lin Xiaoman and antiquities restorer Zhou Yanbai were forced to participate in twelve carefully designed death games. From the ghost train that travels through the night, to the bloody theater where the audience is filled with bones; from the mirror world where time flows backwards, to the upside-down ancient house where organs are exchanged. Each game contains clues to her missing sister, and each space is engraved with the same strange totem.
After everyone experienced nine levels of death including blood paintings in galleries, train gears, and stage meat grinders, they gradually discovered a more terrifying truth: the "accidental" plane crash three years ago was actually the beginning of twelve people being selected as experimental subjects. The bronze key is not a door lock, but a torture instrument to imprison the soul; every death is not the end, but the harvest of nutrients.
In the final corridor, when the memory film reveals all cause and effect, and when twelve clones of themselves lie in the crystal coffin, they face the ultimate choice: continue reincarnation with obsession, or annihilate completely in exchange for liberation? In the corner, new invitations are being generated, and the next "lucky person" has already reached out to take over the bloody key...
When the last key is inserted into the keyhole, you will hear an invitation from the abyss: "Welcome to the thirteenth game. This time we have prepared a more exciting way to die..."
