In the future city "Xinhai" where memories can be weaved, extracted and deleted, Lin Zhou, the top "memory weaver", is famous for his calmness and accuracy. He is entrusted with erasing the painful memory of a powerful client, but unexpectedly discovers that the memory resists as stubbornly as a living thing. When fragments of memory - an isolated island lighthouse, an unknown girl, a crimson tide - invaded his mind, Lin Zhou realized that what he had erased might not only be the client's past, but also the only key to unlocking the mystery of his own life experience.