Seek a summary of the main contents of the film "Two Little Boys Without Guess"

The film begins at a construction site, and workers are tearing down an old building. The camera wandered over the construction site and showed us an old candy box that was half frozen in the foundation. A little boy's voice sounded. He said that at that time, there was a game specially for children, called "Great Adventure". When one child asks another child "Dare", the latter has to say "Dare". On the streets of France 80 years ago, the camera flew backwards, retreated behind the windshield of a school bus, then exited the school bus and appeared outside the rear window, followed by several books cut into a dark place and then pulled out. It turned out that we were still in our schoolbag just now. When the camera was turned on again, we saw a little girl's face, followed by a sharp retreat. We saw the little girl surrounded by a group of children. The little boy company met the little girl Sophie in front of the school bus. Sophie, a Polish immigrant, was bullied by all the children. Julian said he liked Sophie, and Sophie's answer was, "Then prove it to me. Do you dare?" Even when the driver was not in the car, he pushed the handbrake and the car rushed down the slope, with the driver chasing after it. Julian and Sophie became friends at the cost of being beaten by their father. Stills Since then, the two children have started an endless game of "Dare". They don't believe in any rules, and the world is a huge playground: composing words in class and swearing; Spray the teacher with ink; Peeing in the principal's office; Make the bride cry at her sister's wedding ... Although their games are not only fun, they often bring great risks. They enjoyed it, but this habit didn't change until they grew up. They dare to do anything but admit that they are in love. The days have passed in endless mutual provocation, and it has been 20 years before you know it. At his wedding, she came to ask him if he would break his word. The wedding was ruined and they fell out. This time, the challenge of "dare" is not to see you for ten years. Ten years later, she called him and asked him if he dared to elope. He left his wife and children immediately. When she arrived, it was actually another "challenge" game. She made the house look like a robbery scene to see if he dared to leave after she called the police for a minute, because she knew that the police would only need a minute to arrive. When the second hand completed a lap, Julian rushed out of the house and ran after the police, but in excitement, a car accident happened. After Sophie knew it, she rushed to the hospital nervously and was taken into a ward. On the bed lay a man who was covered in injuries and couldn't see his five senses clearly, but Sophie saw the box. She picked up the box and left. In the car, she has been crying. The camera turned to the hospital and saw Lian walking in the corridor. As a matter of fact, he was not badly hurt. He was lying in the hospital bed, and the doctor sewed up the wound for him. He has been laughing, just as Sophie has been crying. Sophie, Sophie, I'm sorry. Sophie probably thought of something, such as why the box was placed on the instrument and there was no way to move Lotus lying on the bed. As for doctors, will they? She knew it was Julian's revenge, so she hurried back. At this time, even rushed out of the hospital. They looked at each other in the rain. They all know that they like each other, but they dare not admit it. Sophie's husband gave Lian a heavy blow, and Lian fainted. Sophie kept calling him and the rain stopped. Sophie's box played a game with him, "Lian, come back, big adventure." Lian woke up, they hugged each other, they played the last game, they climbed down into the cement foundation, and when the cement fell, Lian said to Sophie, "We played so many games, but I never told you." "What" "Eat ants, insult those politicians and love you like a madman." They gradually sank into the cement and joined together forever. At this point, there are other clips after the film, which many people may not understand. According to my own understanding, the director should mean that if all this didn't happen, if they confessed to each other at that station, if they confessed to each other at Sophie's wedding home, and if they confessed to each other at many previous opportunities, the two of them would be old, and they would be able to recall the crazy things they had done before and say "I love" when they were old.