That night, when I started to follow the woman with the sparkling ring, I finally found a clue to unravelling the mystery. I suddenly realised what I was attracted to. I was attracted to someone feeling afraid. Yu-jin is a model student, a successful athlete and a good son. But one day he wakes up covered in blood. There is no sign of a break-in and there is a body downstairs. It is the body of someone he knows all too well . . . Yu-jin struggles to piece together fragments of what he can remember from the night before. He suffers from seizures and blackouts.