In the near future where memories can be extracted and sealed, Ling Chen, the top "memory submariner", travels through the depths of other people's broken consciousness all day long, salvaging the forgotten truth. He is calm and professional, but his heart is occupied by an unreachable hole - his wife Li Yue died in an accident three years ago, and the only key memory is missing. When he finally got the chance to sneak into his wife's last memory fragment, he discovered that behind the so-called "accident", there was a shocking conspiracy that could subvert the entire ethics of memory technology. On this island made of data, every echo is a dangerous step toward the truth or falling into the abyss.
