Through much of the movie we see a young man who seems unconscious on an operating table, while it seems that another version of him is walking around trying to communicate with people that something is wrong and the anesthesia has not worked: We see a tube being inserted into his throat, and we see a surgery incision, with blood trickling out and the alert version of the young man hyperventilates; a saw cuts bones (we see the whir of the saw and see it inserted in the chest cavity) and we see the rib spreaders opening his chest (a rib breaks) and he grabs his chest and screams.
A man removes the heart from a young man's chest (we see the heart in the man's hand) and prepares to replace it with a new one.
A doctor describes a heart transplant procedure to a patient who appears fearful; he imagines an incision and we see the blade pull down his chest and open the skin with blood seeping out and we see organs and tissue and a long sutured incision.
A young man remembers, as a boy, seeing his father wearing a Santa suit and lying dead on the floor after falling down the stairs (we see a man covered by a sheet with one hand hanging out of the side).
Police chase and arrest a suspect (they push the suspect against the floor).
Two men talk about killing someone.