The movie tells the story of Tian Xiaole (Chen Yao), who only thought about the "60-point pass life" female man, after meeting Cheng Daye (He Haochen), the savior with a "100-point halo", his life began to change dramatically , And willingly act as the "iron buddies" of each other, secretly falling in love with Cheng Daye in the name of friends, but in fact the two of them have always hidden the most sincere feelings for each other in their hearts. After all the ups and downs, waiting, and misses in life, returning to the beginning of love, it turns out that love at first sight is the simplest thing in the world.
The story starts because of one journey. Seven people who have never met before climb aboard the same ride that goes into a seemingly endless tunnel. Despite the countless trials, corpses that mysteriously appear, past acquaintances that returned from the dead and an unseen danger threatening to swallow them whole, it's as if they are trapped in an enclosed space where there is no escape.
