I'm looking for Asian dramas that are similar to the American TV Show 'You'. The type where there is an unhealthy relationship to the point of stalking the person, murdering for the person, doing creepy things with their stuff, and being overly possessive/obsessive or even abusive. I'm looking for more recent dramas however, at least from 2014-onwards as I'm trying to make an edit. It doesn't matter if it's the female lead/male lead that do these things, but I would prefer suggestions for both.
It can also include manipulative relationships, where the girl is actually obsessed with the guy and commits crimes with him, lets him manipulate her and does what he wants because she believes she needs him but then later on gets out of that abusive/unhealthy relationship and realises she is better without him.
Those are two separate things, as I'm going to do an edit on the song 'Joke's on You' and 'Unhealthy Obsession' so any suggestions are appreciated. (PS: It doesn't have to be the main couple, I just need to have it stated who is playing what role)