It was a cold winter in Dalian. Lin Xiaoyue (Barbie Hsu) moved to a new home with her 6-year-old daughter Nini. Xiaoyue, who had just experienced a failed marriage, was in a low mood and only wanted to spend the rest of her life with her daughter. However, the new home was very strange. There was a story that a mother had thrown her daughter off the building and committed suicide by jumping off the building. The daughter was also 6 years old, which made Xiaoyue very heartbroken. She had nightmares that night. After Xiaoyue sent Nini to school during the day, she returned home and found that the walls of the corridor were full of beautiful roses. It turned out that they were painted by her neighbor Fang Cheng (Liu Ye), who could also pick them off the wall like magic and give them to her. Fang Cheng's enthusiasm made Xiaoyue grateful, and later Fang Cheng also beat back Xiaoyue's husband who came to harass and entangle. But Nini began to feel more and more wrong. She began to lock herself in the room and talk to a non-existent person. When asked, she said that she had a friend named Xinyi. That night, Xiaoyue woke up from a nightmare. A woman was sitting next to her. She said that she threw her daughter down here seven years ago and then jumped off the building to commit suicide. Her daughter's name was Xinyi...