Grid

First let me start by saying I really appreciate there being an English version to watch. It's hard to watch subtitles for an extended period of time. I wish more foreign films would offer this option. I'd bet a lot more English speakers would watch the show providing they know it's an option. I just happened to try to watch it and thought I would have to deal with subtitles. What a pleasant surprise to find out that I do not. I am a lover of sci-fi so this is right up my alley. I just started watching the series yesterday and it has caught my interest. I am enjoying watching it. It's got a medium action flow to it. If you like sci-fi mystery then this is the show for you.

THE ENDING EXPLAINED !!! ( A bit spoilers alert )

The ghost and masked man materialize there at the time. While the agents are informed about the existence of the Ghost, the moment they are about to start firing, the two create two force fields and pause the time. The Ghost telepathically speaks with Sae-Byeok and asks whether she came to save Sae-Ha, and the answer becomes pretty self-evident.

After this devastating sequence, we see Eo-Jin dropping Sae-Byeok off at her house and later having a heartfelt conversation with her. He also learns that he had died in an alternate timeline, and Sae-Ha sacrificed himself to save him. Cut to a year later, where we see Sae-Byeok with her kid. Eo-Jin suddenly drops in and urges her to tag along with her. He even knows her daughter's name, which surprises her since they hadn't spoken about the daughter. He mentions that she told him the name, which indicates perhaps Eo-Jin has come there from a different timeline.

While they drive off, the bureau's buildings get engulfed in flames after a flash of blue light hits them. When the two reach a warehouse, the door opens to show Sae-Ha, and the Ghost comes out, and then all of them enter this place. The ending, like any other episode from the season, ends on a cliffhanger. Besides an effort to save herself (since she is connected to Sae-Byeok through ancestry), there is hardly any more conclusion I can gather from the scene.

Explaination is Directly copied and paste from Highonfilm website !

I loved it, there were moments when the drama got me a little confused, but I think they have done a good production job, they handled the special effects very well, the actors played their roles very well, the series did not focus on too many advanced technologies , I like it better that they are less excessive, sometimes too many fictional details distract the viewer from following the story.

I don't think the budget for this series was high, it's a shame that the marks on the cars couldn't be seen, in those details I feel that a bit of realism is lost. And finally, the last chapter was very crazy, many ups and downs, the end I did not understand much but I still enjoyed it.

This series was probably 3 episodes too long. The first six/seven episodes flowed nicely, and I felt, were engaging. I felt episodes 8 and 9 were just efforts to extend the story. Still entertaining, but, much less so than the previous episodes. Then you had the last episode...Lord...As others have remarked, the last episode made no sense. I just finished watching it and I am totally confused. The story up until the end was original. As with most Korean movies/series, the acting was great. I deducted stars from my rating for the above reasons. Just go in knowing you will be shaking your head at the ending.

It started with a lousy introduction that was too ambitious on paper and then began to jump between one plot after another until the end. There was a desperate need for a better coherent structure and pacing. The characters were more or less fine but, despite being one of the most important characters, the ghost lacked a better characterization to make her role more impactful. The last 1-2 episodes were fundamentally bad, their main purpose was to lay down a handful of new elements for an imaginary sequel. This is a bad common practice streaming services have been pulling since forever to keep hold of the viewers attention regardless if they were planning for a sequel or not. The only acceptable scenario for such a practice is to have a direct sequel to follow it. Anyway, the drama was very mediocre Sci-Fi with a handful of failures.