5/10 For me. Definitely mixed emotions with this series as I had high expectations but then some things just didnt happen as expected and not in a very good way, there's 2 main reasons. (spoiler free)
Lets start of with the cast. First of all the cast they had, very good, they had the main character from unlocked playing the role as 8th Floor and they had Jessica from Vagabond (A VERY good Kdrama) who I like a lot and is an amazing actor so right away i was looking forward to it. I was soon let down.
Plot - Without spoiling it, I really don't know where they went with this, I was expecting the show to be somewhat similar to 'Night has come/Squid Game' (Other good Kdrama's) however I was struggling to really get into the drama, waiting for there to be some form of big twist that didn't happen, kinda like waiting for a sneeze that doesn't come. There was 1 good twist regarding 1st floor and why we needed a certain amount of money however what that then led to was a disappointment, felt like they did a plot twist for nothing.
Overall it was an okay show, I wouldnt recommend it over any of the shows I mentioned, I wouldt say it is a BAD show however it had way more potential do so much better but in my opinion fell short. I can understand the frustration in some of the 1 star reviews however 1 star is a bit harsh, it was an okay show!