chunk: The film is presented in a nonlinear narrative, jumping between various days within the 500 days of Tom and Summer's relationship. This is a linear summary of the plot.
  On January 8, Tom Hansen meets Summer Finn, his boss's new assistant. Tom is trained as an architect but works as a writer at a greeting card company in Los Angeles. Following a karaoke night, Tom's friend and co-worker McKenzie reveals that Tom likes Summer. During the next few months Summer and Tom grow closer, despite Summer's telling him that she does not believe in true love and does not want a boyfriend.