Repression Of Lost Memories

"I cant help but feel there is somthing important missing"

Ji-yong hasnt had a good relationship with his parents for a long time, and has had this odd dream as well which has caused him to see a therapist, But when his parents die and leave him a will saying that the house he grew up him is now his; he decides to move in hoping that it would trigger the memories of his past. Then upon arriving he meets Choi Seung-hyun A mysterious man that apperently knows him from childhood.