[Machine Translation] When Abby wakes up, she finds herself locked up by an unknown man. Her hands and feet were bound in the dark, like prey awaiting death. She has no recollection of how she came to be held captive, and to her horror, she has no memory of it. It was a nightmare, but it was real. He struggles to reason and escapes with his life, but the nightmare is not over yet - the truth of the case and the murderer are still in the dark. In order to regain her lost peace and memories, Abby begins to pursue the murderer, defying her loneliness and fear. In 500 tense pages, the master of psychological suspense captivates with his overwhelming style.