Oh boy! I found this yesterday and thought I would give it a try. After the first 10 minutes I wanted to turn it off, I don't know why, I just felt this woudn't be worth it. At the end I watched until midnight, I was completely sucked in by the story. It's really, really good. The acting was superb, the story itself makes you think and almost haunts you. I coudn't get it out of my head even in my dreams. It's a psychological work and it's a great one. I can recommend it to everyone who likes good psychological stories. The BL is real, btw. There is no doubt about it. But the focus is on jealousy and obsession.
Give it a try!