If you haven't read or heard of this comic strip before, Multiplex is an online comic about the staff of a movie theater, the Multiplex 10 Cinemas. It's located in an unnamed suburb of Chicago. The young staff keeps themselves entertained by talking about movies, messing with each other or unwelcome customers, and, well, sometimes getting melodramatic, as anybody who's ever worked a customer service job would expect — especially staffed primarily by teenaged and college-aged kids.
You might also read the first 24 strips in Multiplex: Chapter 1, a high-resolution eBook-style reading experience with partially reformatted/revised artwork as well as some exclusive, bonus comics — sort of like Multiplex: The Extended Edition. (The Scribd Reader requires Flash and a fast internet connection.)