Remember Me [Film and TV Commentary]

High school teacher Shu Lin (Lee Yoo-young) who is about to get married ), received congratulatory gifts from everyone. After she drank the coffee on her desk, she immediately fell into a coma. She was not awakened by her students until the next morning. From then on, her peaceful life was gone forever. Soon, Shulin's mobile phone received a horrifying harassment message from the "Master". The content was actually a photo of herself when she was unconscious. What made her shudder even more was that all this seemed to be a replay of the same nightmare 14 years ago. Shu Lin enlists former detective Guo Zhe (played by Kim Hee Won) to investigate the truth of the case, hoping to find the mastermind behind the case. At this time, students in Shulin's class also began to receive harassing messages from "Master", and the protagonist of the incident became a female student in the class. Guo Zhe, who had investigated similar cases, also felt that something was wrong. When the situation became more and more bizarre, what was the connection and involvement of the two cases? And who is the "Master" who is hiding in the darkness and controlling everything?