In the near future where memories can be read and played back, Gu Chuan, the top "memory submariner", is obsessed with the broken memories of the deceased all day long, trying to find the truth behind the death of his late wife. When Professor Irene, the mother of memory technology, commits suicide mysteriously, a mysterious commission draws Gu Chuan into the center of the whirlpool. He sneaked into Professor Irene's last memory, only to find that it was not a smooth road leading to the truth, but a carefully tampered thinking maze full of traps. The mysterious symbols in the memory and the erased key figures all point to a huge conspiracy that can subvert the foundation of human cognition. Gu Chuan must find the only "black box" among virtual memory fragments and cruel reality pursuits, reveal the truth, and finally face his dusty past.
