Ju-young, a woman with a hearing impediment heard the unsettling news that her younger sister Ju-hee had disappeared without a trace from the apartment. While she asks the residents about her sister, they all reacted hysterically, begging for peace and quiet. The residents were strangely quiet at night, and a bizarre presence appeared before Ju-young. Soon, she finds herself haunted by inexplicable sounds that attract a malevolent presence linked to her sister’s disappearance...