Hidden on the vast blue ocean is an Angel Island. The scenery here is picturesque, like a paradise. However, the residents on the island seem extremely strange. They are like angels no matter where they are, maintaining an almost exaggerated "friendliness". It seems that everyone is wearing an invisible mask.
Over the years, countless tourists have been attracted by the mystery of this island, but without exception, they all left in a hurry after a short stay. Until one day, a bizarre murder broke the tranquility of the island.
Concept: an island full of mystery and suspense, the battle of life and death between twin sisters, the eternal battle between freedom and bondage, truth and lies.