IOTNBO has been the most talked-about drama of 2020 and for some maybe even the best drama of 2020. I am not one of these people and IOTNBO has been added into my list of the most disappointing dramas of 2020. There are good aspects of course but there are some bad aspects which have caused my rating to be so low.

The Good:
- The first half is amazing
- The psychology aspect is very well done and is blended into the story pretty well
- All the characters have motivations and aren't just one dimensional
- The Characters by themselves are interesting
- The story is interesting
- The MC's have great chemistry
- The Acting is really well done by all the cast especially Oh Jung Se and Seo Ye Ji
- The FL is interesting
- The OST is phenomenal

The Bad:
- The Drama falls flat in its second half and becomes unpleasant
- The Love story happens too fast and doesn't make sense
- The writing is the weakest point as they don't really string together all the great aspects very well and instead, it feels
really messy and confusing
- There really isn't a plot and instead its just random events that happen
- The drama is filled with cliche tropes and even though it does have interesting aspects (such as the psychology aspect)
it's mostly just an average Rom-Com
- All of the character development is really messy
- The FL mother being the murderer was really badly done and her whole character arc was not done very well
- The drama has many opportunities that it wastes

Conclusion: IOTNBO is not the worst drama in the world but it is disappointing when you see how much potential the drama has. IOTNBO could've been one of the best dramas of the last decade but it squanders a lot of its opportunity by adding unnecessary tropes and predictable plot twists. So for me, I would give IOTNBO a 6.5/10