Shen Zhimian, a picture book painter who suffers from severe insomnia, consults Song Qingheng, a psychiatrist who is said to be "patient and easy to talk to" on the recommendation of his childhood friend. His gentleness and professionalism are the only stability in Shen Zhimian's chaotic world. But gradually, this "stability" changed - the broken locks at home would be repaired inexplicably, and the editor who bullied her would take the initiative to apologize and leave. Song Qingheng's home contained her lost keychains, abandoned drawings, and even more items that she had no memory of but were extremely private. When love revealed its moist and cold possessive nature, Shen Zhimian was shocked to realize that it was never her illness that she wanted to escape from, but this "ghost" wrapped in a gentle coat that had already imprisoned her.
