Why does the synopsis reveal the entire plot of the movie? Luckily there is a fish in the movie that can be related to our main character, the mysterious woman Ji-soo who collects and examines garbage from other people, and this comparison is the most interesting thing about the movie.

The idea to be able to know other people through their garbage is not bad but it is highly unrealistic from the perspective of this movie. The main character, Ji soo has only around 10 Folders but she documents every trash piece of every tenant?! If I knew someone with this kind of "hobby" I would surely think that this person is crazy although it could be a product of an introvert person who is interested in other people but is afraid to approach them directly. This is where we as viewers can sympathise with our main character and wish her to open up for the real human contact. The movie is good for what it is and it manages to emotionally connects us with the story and characters.