In the near future, memories can be grafted and overwritten. The scavenger Shen Shen had a memory of killing his wife in his mind. After tracing, he found that the personality of "Shen Shen" only existed for 5 years, and his body was the product of six personality overwrites. His predecessor (Chen Mo) left the memory virus as a revenge weapon, and Silence must make a choice before the "seventh forgetfulness" comes: delete everything and become a pure new person, or bear all the true and false memories and define who he is.
Concept: Are people defined by their memories? When false memories are more "real" than reality, when personality can be overwritten, who exactly is "I"? ——Identity is not given, but chosen.