In the future, memories can be retrieved and reviewed. "Memory Submarine" Lin Jing is a leader in the industry. He can sneak into anyone's mind and look for evidence of crime. However, when he woke up from a mission, he found that his wife had died tragically at home, and his memory of the time of the crime had been professionally and accurately erased. As the number one suspect, Lin Jing was forced to embark on the road to escape. He must fight against the entire city's pursuit system, dive into the most dangerous abyss of his own mind, and salvage the stolen truth. But he is about to discover that it is not only the murder that has been forgotten, but also a secret that can turn the world upside down.