I originally watched this movie because of Park Hyung Sik, whom I've followed since watching Strong Woman Do Bong Soon. However, I was surprised at how much I enjoyed the plot of this movie, which I found was very heartwarming. I also think that the character growth of the characters shown throughout the movie was written very well, and the actors did a very good job at portraying their characters. The only thing I find lacking is that I wish I was told more about what happened to the main character's business after the trial ended.
TLDR is that I recommend this movie because I think the plot and acting were great.