Jiang Lin, a former criminal investigation archivist, was falsely accused of mental disorder and imprisoned in Qingsong Nursing Home, but ten photos of the deceased were found under his pillow. The new psychotherapist Su He noticed something unusual and quietly intervened in the investigation. The security captain Chen Mo secretly passed on clues, the deaf-mute cleaner Lao Zhong used graffiti to restore the truth, and the vice president Zhou was conducting in vivo experiments on patients. When the list of names behind the photos was gradually put together, Su He discovered that his father's death was among them.
I was sent to a sanatorium as a mentally ill person