Another "Please Help Me Find the Name of this Korean Drama" Discussion

A while ago my grandmother and I watched a drama, and recently I've been trying to find it with no avail. I don't remember the name of it but I do remember key parts of it. I'm sorry if the information I give is inadequate,  but I'll try my best.

• Takes place around a hospital. There's this whole political scandal and I checked, it did not seem to be White Tower
• Antagonist is an older, somewhat shorter, somewhat rounder and has glasses. He seems to be in a high position in the hospital
• Protagonist is a tall, slimmer, pretty handsome guy who has his hair up and styled
• Some supporting characters:
  • Two or three families
  • One is pretty rich and one is pretty modest. 
  • An old woman dies
  • A son gives his mother over to his father and leaves her and his father praises him. Then the mother gets locked in a room, gets beat, and has amnesia at a certain point?
  • There's a guy with curly hair who dates a girl (don't even remember a thing about her)
  • A brother of the old guy who is a high up position in the hospital
• There's a USB of the old guy doing something bad that can ruin his reputation
• Towards the end there's a climatic moment where the old guy takes the mother or some other female character onto the roof of the hospital and threatens to push her off I think if she doesn't give him the USB. When that doesn't work, he himself threatens to jump. But then the guy comes in with the USB and he starts getting snatchy which causes it to fall from the roof. He runs down to look for it but couldn't find it because his brother got it before him. After that, the USB goes everywhere and eventually goes to the police. 

I know... Gotta love my explanations

emergency couple??

 Czakhareina:

It probably is Medical Brothers. 

Though, the description of the protagonist and antagonist seems interchanged.  Song Changmin being the antagonist  doctor with glasses;  and Jang Donggun as the handsome, tall with hair up styled protagonist. Or is it the glasses that has me confused. 

I'm embarrassed I referred to that character like that Cx, but it does not seem to be that one because of various snapshots I've seen and the cast. The antagonist and his brother are much older

I think I might've found it while going through my grandmother's video log. She watches a bunch of Korean drama so I had to sift through a lot. Buut, I believe it is Only Love so if you want, it might be fun to check it out to see how poorly I might have described the characters xD