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Robert Lin
Dr. Zhang Tiankai

Cai Hongxiang
Old Hu

Yang Qing
Head nurse Ma

Lan Cheng-lung
Dr. Lin Fei

Chrissie Chau
Bai Jie / Dr. Ye

Tse Kwan-Ho
Dr. Ouyang
Directing

Ning Jingwu
Director
Writing

Ning Jingwu
Writer
A killing spree takes place in a northern China's hospital, an old elevator goes to the 18th floor - underground.
Dr. Zhang Tiankai
Old Hu
Head nurse Ma
Dr. Lin Fei
Bai Jie / Dr. Ye
Dr. Ouyang
Director
Writer