Morgan and his classmates went to the lake in the suburbs for a holiday. The decoration in the house reminds her of her sister who just committed suicide. While sorting out her sister's belongings, Morgan found a key with a little cloth bear hanging on it. When she found this key chain, everything began to be very strange. Morgan was clearly sealed in a box when sorting out his relics, but when he woke up at night, he found it on the table. Stranger still, when they need lime juice, Morgan needs to drive to the grocery store a few kilometers away. On the way back, because the car suddenly stalled, Morgan had to get off and check, only to find that the bear key chain that should have been at home was in the middle of the muddy road. When Morgan got back to the car, she saw a vague figure in the rearview mirror. She was frightened and drove back quickly. Morgan thought all this was strange and felt that his sister was warning him. Fortunately, when Morgan was shopping in the grocery store, he met a young man her age. When talking with him, he revealed his experience. The young man didn't think she was crazy like her other friends, but he affirmed Morgan's illusion and told her the legend about the summer solstice psychic. Under the guidance of her sister's ghost, Morgan came to a swamp, and Morgan's friends followed her there because they didn't trust her, where they dug up the body of a little girl, which had rotted, and a bicycle with a chain handcuffed to it. Morgan actually opened the chain with her sister's bear key. So, after reasoning, everything came out. It turns out that Morgan's sister and her boyfriend killed a little girl and buried her in the swamp when they were on vacation here. Sister committed suicide because of guilt, and her boyfriend also rushed to the road and hit a police car this holiday.
I still feel terrible when I don't see the ending. After seeing the ending, I found that this film is not a thriller at all, but it is also a traffic accident propaganda film.