Late at night, the heroine receives a call from her husband in the future and is shocked to learn that she will die at 2 a.m. At the same time, her best friend also calls from the future. The two point the finger at each other, accusing the other of being the murderer. In this perilous mountain villa, can the heroine use her wisdom to find the real culprit among the true and false clues and reverse her fate?