Ju-young is a young woman with a hearing impediment who decides to investigate her sister's inexplicable disappearance, last seen in her apartment. Feeling more and more cornered, Ju-young begins to hear strange sounds and sense an evil presence in the apartment.
Joo-young
Gi-hun
Jeong-in
Park Geun-bae
Joo-hee
Head of the Women's Association
Security Guard
Detective
Management Director
Ex-Head
Detective
Yeon-woo
