When a young psychiatrist, Dr. Elena Zhao, inherits an old, abandoned asylum rumored to be haunted by the spirit of a Dog Head Assassin, she embarks on a chilling journey to uncover the truth behind the sinister shadows that lurk within its walls....

In a world where omens are real and the past can reach out to the present, a young woman must confront her family's dark legacy and the truth behind her own identity....