The protagonist originally wanted to break the current life dilemma by trying to change her lifestyle, but she was unexpectedly trapped in a life dilemma by someone with ulterior motives. When she was encouraged by a stranger to try to change houses on a dating website, everything was so beautiful and joyful on the first day, but when she woke up on the second day, she fell directly into a nightmare. First she was arrested and investigated for murder, and then all the evidence showed that she was the murderer. Fortunately, the heroine has a strong will, a clear mind, and quick reaction. She knows that she can only solve the mystery of her current situation by herself, so she looks for an opportunity to escape and investigate on her own. However, just when the mystery is about to be solved, she falls into despair again.