The story is about a young woman, Young-goon, who works at a radio factory. Believing herself to be primarily mechanical, she is institutionalized after wiring herself, creating a self-inflicted electric shock. It is there that she meets the other patience, including a young rabbit masked man, Il-sun who believes he can take away other people's character traits with his hand. Young-goon, not only believes herself to be a cyborg, but a killer cyborg with the mission to kill the hospital's staff. One extended scene shows Young-goon with bullets flying out of her fingers, and bullet cartridges falling out of her mouth. Something of nod towards Park's trilogy, before the murderous fantasy takes place Young-goon asks Il-sun to remove her sense of sympathy.

What I'm a Cyborg has in common with Park's other film is the examination of how people define themselves. A recurring motif is Young-goon search to discover the reason for her existence. The more clearly satirical moments are how mechanized work can be, as well as how dependent people are on machines. Park even finds a way to create a verbal and visual joke involving both the animal mouse and computer mouse. While Park uses CGI to convince the audience that Young-goon might actually be a cyborg, he is aided by Lim Su-jeong and her oversized eyes. The Korean pop singer Rain allows himself to look silly with his two licks of hair combed to appear like two modified rabbit ears. Rain will be somewhat better known this summer with a part in this Summer's Speed Racer.

In one interview, Park mentions as one of his literary influences, Philip K. Dick. It would seem that I'm a Cyborg is something of a twist on Blade Runner. Instead of a cyborg who believes he is a man, we have a woman who is convinced she is a cyborg. Which is still OK.