Li Mingzhe, who has a master's degree in chemistry from a prestigious university, lost his job right after graduation. Under the pressure of ideals and reality, he was forced to work at Yong'an Funeral Home in the suburbs and become a cremator. The breath of death, numb colleagues, and cold incinerator crushed his last pride.
After witnessing a fierce conflict between his family members due to beliefs and laws, an idea that came from professional knowledge and was almost blasphemous grew in his mind - Can chemistry be used to replace flames? He named this experiment "Water Sleep".
Inadvertently inspired by his mentor, Li Mingzhe started a crazy secret experiment in the simple "laboratory" in the corner of the funeral home. The breakthrough in technology has brought about an unexpected "business opportunity" - providing "water sleep" services for special families who refuse to be cremated.
However, when a special client appeared with a huge sum of money, cold demands and a suspicious corpse, Li Mingzhe was pushed into the real abyss.
The fall of a chemical genius, the birth of taboo technology, the gray transactions in the funeral home, the missing undercover agent, the suspicious corpse... Under the calm "Yong'an", there are turbulent undercurrents. Is the "Quiet Return" technology held by Li Mingzhe the key to salvation or a catalyst for destruction? He thought he had just disposed of a corpse, but he did not know that he had opened Pandora's Box with his own hands.
