The Japanese movie titled Infection and directed by Ochiai, MasayukiMasayuki Ochiai was released in 2004 and is categorized as horror.
Key cast members of Infection include Kōichi Satō, Michiko Hada, Yōko Maki.
The plot of Infection is: At a run down, understaffed hospital, Dr. Akiba refuses to admit a patient with a strange black rash and is alerted to a serious crisis in Room 3 where a burn victim has died, having apparently been given the wrong drug. Akiba, another doctor, and four nurses decide to cover up the cause of death and move the body to an unused room. Akiba then discovers that the patient he refused to admit has been left in the hallway. Doctor Akai decides to study his symptoms: though he is still alive, his body mass is liquefying into green goo. Not knowing how much Akai knows about the events in Room 3, Akiba and the others reluctantly agree to help with the examination but when they return to the patient's room, they find he has vanished and the head nurse has been knocked unconscious.
The doctors find that they are risk of infection, when the head nurse begins to bleed green goo from both her ears and eyes. The doctors put her on a bed and cover her with plastic in an attempt to limit the infection's spread. Soon after, the mean nurse finds the young nurse drawing blood on herself. Their conversation goes awry, when the young nurse lets out a manic laugh and plunges two needles into her body, splattering the nurse with green goo. While speaking with a patient he killed earlier, Uozumi is overcome with guilt and starts crying. Akiba walks in, but finds Uozumi alone. His eyes turn white and green goo starts seeping from him. Akiba panics and turns to find a nurse, now infected and covered in green goo, smiling and hanging upside down from the ceiling. After finding the nurse giving her own blood to the dead burn patient and running into the infected head nurse, Akiba flees the room.
Akiba confronts Akai and accuses him of creating and spreading the virus. Akai denies this and explains that the infection is actually spread mentally, infecting the subconscious of its victims. He then urges Akiba to remember what really happened in Room 3 earlier in the night. Dr. Nakazono walks in to find Akiba talking to himself, forcing him to realize that he's been speaking with his reflection. He looks around and sees the corpses of the two nurses who are dead and covered in blood with no green goo in sight. Soon, Dr. Nakazono realizes that the last few hours have all been a hallucination. Nakazono calls the police, as Akiba recalls the events in Room 3 and realizes that "Akai" was actually the burn patient. The same series of events is shown again, but with Akiba as the burn patient and Akai as Akiba, giving the order for the wrong drug, which massacres the entire staff.
The hospital is evacuated the next morning as all of the staff, except Nakazono, are dead and the police is searching for Akiba who has disappeared. When Nakazono leaves the hospital, she sees all the red lights change to green and vice versa; panicking, she accidentally cuts her hand and green blood pours out. A shot of a locker is seen in the room where the burn victim was kept. Someone inside the locker is calling for help as green goo starts pouring out of it. The top of the locker opens and Akiba's hand covered in goo reaches out before falling to the floor..
