In this hotel, bizarre cases are taking place. Two deceased persons appeared one after another. These two cases were like two invisible sharp swords hanging over the heads of all suspects, making people feel frightened.
As the investigation deepens, the human nature inside the hotel begins to be gradually exposed. Greed, jealousy, hatred... These seemingly unattainable evils are performed here one by one. Everyone is fighting for their own interests, but ignores that the real murderer is watching in secret, waiting for the next prey.
And deep in the hotel, a mysterious shadow is quietly appearing. He seems to be inextricably linked to this case, but he always hides behind the scenes and is unpredictable. What is his true identity and purpose? What is his connection with these two cases?
In the silence and solemnity of this hotel, a battle about human nature and life and death is quietly unfolding. And how will the final outcome be revealed?
Concept: There is no absolute good or evil, only complex human nature.