On an isolated island surrounded by the "Sea of Oblivion", periodic "tides of memory" strip away part of the residents' memories to maintain a fragile peace. Lin Mo, as the only "memory keeper" on the island, is responsible for collecting and sealing these stripped memory fragments. He is calm and restrained, guarding everyone's past, but he can't find the face of his deceased wife. When an unprecedented "Crimson Tide" strikes, dust-laden secrets and taboo memories begin to surface, and Lin Mo is forced to make a choice between protecting the order of the island and exploring his personal truth. He will discover that the so-called forgetfulness may be a more cruel prison than memory.
