Li Mingzhe, a chemistry master's graduate from a prestigious university, finds himself unemployed the moment he graduates. Crushed by the weight of ideals and reality, he is forced to take a job as a cremator at Yong'an Funeral Home on the outskirts of the city. The stench of death, his numb colleagues, and the cold cremation furnace grind away the last of his pride.
After witnessing a family clash fiercely with the authorities over their beliefs, a nearly blasphemous thought, born of his professional knowledge, takes root in his mind: Could chemistry replace fire? He names the experiment “Water Burial.”
With an inadvertent nudge from his mentor, Li Mingzhe begins a series of reckless secret experiments in a makeshift “laboratory” tucked away in a corner of the funeral home. A technological breakthrough brings an unexpected “business opportunity”: offering “Water Burial” services to families who refuse cremation for special reasons.
But when a special client arrives with a huge sum of money, a chilling demand, and a corpse riddled with suspicious details, Li Mingzhe is thrust into a true abyss.
The fall of a chemistry genius, the birth of forbidden technology, shady deals at the funeral home, a missing undercover agent, a corpse shrouded in mystery... Beneath the calm facade of “Yong'an,” dark currents surge. Is the “Silent Return” technology in Li Mingzhe's hands a key to salvation or a catalyst for destruction? He thinks he has merely handled a corpse, unaware that he has opened Pandora's box with his own hands.