Hi. This is a movie I started some years ago, but never finished. There is a man who is a part or a member of the Yakuza/Gangster. He is a really lonely person. At one point, he goes to a hospital, maybe to find somebody his boss wants him to find and he has an altercation with a nurse and they develop a relationship, I believe? 

I think it would have been released in around the last 11-12 years and it is a serious drama, not a comedy. It was quite downcast and sad, when I last saw it. 

I found this film on Mydramalist, but cannot seem to find it now, no matter what I search or what genres I use. 

Thankyou for any suggestions!