[Please Help Me! Thread!]

I found it! It's called "Extraordinary You"

[Please Help Me! Thread!]

Can someone help me figure out the name of a drama? I saw a clip on TikTok but now can't remember the drama's name. 

 

In the clip there was a couple running down a hallway. As they ran the lights above them were going out. It was like they were running from the dark. I didn't recognize either of the 2 lead actors. I feel like the synopsis was something about one of the characters starting to lose time or something like that. 

 

I know that's super vague! Sorry! I want to kick myself for not writing it down.