A plot obviously. There were good parts of this film, mostly involving Robert Downey Jr. (Weird Science) and Woody Harrelson (Doc Hollywood), but they didn’t add up to anything particularly impressive plot-wise. I think the basic idea—an undercover investigator assigned to observe himself thanks to technology that protects investigators’ identities—had more potential than was realised here.
But like I said, it has a few entertaining scenes. And I loved the visual style, a cartoon look generated by rotoscoping the live action film.