Sunny morning, doctor Zhou Jie (Yuan Chengjie) told his patient mysterious death, autopsy results are all normal. In order to give the patient an account, Zhou Jie with doubts began its own investigation into the. With the in-depth investigation, Zhou Jie found everything not surface of this hospital so simple look, during contact with the colleagues also one after another bizarre murder, his girlfriend Chen Shanshan (Tan Zhuo decoration) also received death threats and mysterious. At the same time, a strange figure often appears in front of him, a mysterious metal objects become the only clues to uncover the truth, in the end is what? Why the mysterious death of patients? The seemingly bright hospital in what is not to be divulged what secret? Cornered Zhou Jie and his girlfriend can survive?