A boy appears, bloody and dying in the streets of small town, Caulwyn. Most people just stare, too frightened to get involved. Fortunately for the boy, one passerby, a doctor, immediately jumps into action and is shocked to find he recognizes this bloody stranger. Upon this realization, he eschews calls to take him to the hospital and instead takes him home.
After a long day of work, a doctor trudges home in the pouring rain only to find a dying teenage boy in the road. He takes the him home, saving his life, only to discover the boy has no memory of who he is. The doctor and his daughter invite him to stay with them and as time goes on, discover some strange and unexplainable things about their newest family member.