After waking up from a dream, with an inadvertent move, the originally innocent Su Mohan was forced to become a kidnapper. Unfamiliar with "business", she dragged her suitcase to an apartment in the suburbs in order to let the hostage Li Zheyu and herself survive safely.
The "ghosts" that appear from time to time, the two sisters with weird personalities, the company colleagues who are pursuing her, the frightening serial murders, the disappearing memories and the knot she has hidden for many years.
"Shh, don't make a sound, don't move, don't let our love between them be exchanged for murder."