The Operating Room Climax (Coma) Coma
The climax replays Nancy's surgery with Susan on the table
The operating room sequence spans beats 33-39 of the beat sheet, roughly 1:40-1:49 on the timeline. Harris calls the hospital and schedules an emergency appendectomy for Dr. Wheeler in Operating Room 8. The plan is elegant: Susan will present with real symptoms (produced by the drug in her Scotch), undergo real surgery, receive carbon monoxide through the same concealed gas line that killed Nancy Greenly and Sean Murphy, and wake up brain-dead. She will be tissue-typed, transferred to the Jefferson Institute, and harvested. The system she tried to expose will process her as inventory.
The parallel to Nancy's surgery in beat 5 is exact. Crichton stages both sequences with the same camera angles, the same clinical rhythm, and the same ambient small talk from the operating room staff. The anesthetist administers pentothal and gas. The monitors trace Susan's vitals in green lines across the screen. PVCs appear. Blood pressure drops. The surgical team trades casual conversation while a woman is being killed.
Mark's earnest belief is the film's cruelest irony
Mark Bellows examines Susan and finds real symptoms: plus-four peritonitis, guarding, and spasm. Susan begs him to check her white count and sedimentation rate -- tests that would prove the appendicitis is fake. Mark dismisses her: the physical signs are clear, Harris himself is doing the procedure. The man who spent the entire film telling Susan to trust the system delivers her to the system's killing floor with genuine concern. He does not understand that the symptoms were manufactured.
Harris insists on OR 8 when told OR 7 is ready. Mark begins to scrub in but is paged away for convulsions on surgical two. The page may or may not be genuine. What matters is that Harris has isolated Susan from the one person who might question the procedure. A nurse tells Susan she is going to have "a nice sleep" -- the same reassuring platitude every patient hears.
Mark destroys the gas line thirty seconds before it kills Susan
Mark follows Susan's trail to the basement and finds the concealed carbon monoxide tank and the valve that controls it. He destroys the connection. The gas cannot reach OR 8. The scene inverts the gender dynamic one final time: the man who dismissed the woman's evidence all film saves her life by acting on it. But the film does not frame this as heroism. Mark is the last person to understand what Susan understood first. His rescue is an act of belated belief.
The normal appendix is the physical proof that Harris was the villain
Susan wakes up. The anesthetist reports that her appendix looks normal. The operating room staff exchanges glances: "It's nice to see the chief get caught sometimes. Happens to the best of us." They do not yet understand what they have witnessed. They think a senior surgeon misdiagnosed appendicitis. The audience knows a senior surgeon tried to murder his patient.
Susan grabs Mark's hand and says the words she has been trying to say since Harris drugged her: "Don't let him do the operation." Mark answers: "I know, baby. I know." Harris stands in the operating room as police wait outside. The film ends not with catharsis but with institutional exposure. The hospital is still there. The corridors are still sterile. The system that allowed Harris to operate will survive his arrest.
Dennis Schwartz captured the tension between entertainment and plausibility in the climax:
"More entertaining than credible -- its exciting climax plays out as more entertaining than credible." — Dennis Schwartz, Dennis Schwartz Reviews (n.d.)
The objection is fair. The logistics of Mark's basement race, the timing of the gas line destruction, and the convenience of the police arrival all strain belief. But the structural parallel -- Susan on the table in the same room where Nancy died, undergoing the same sequence of physiological collapse -- gives the climax an emotional architecture that carries it past its implausibilities.