The film consists of four independent short stories. "Misunderstanding": Director Chen (played by Yang Lixin), Dr. Sun (played by Xu Zheng) and Sun Datou (played by Liu Yiwei) were originally three strangers with no intersection in their lives, but because of a strange combination of circumstances, they took each other's mobile phones by mistake at the airport, and the following chaotic scene occurred: Director Chen wanted to have a one-night stand with a female netizen, but this opportunity was ruined by Sun Datou. But he found that Dr. Sun's patient was his wife, and it turned out that his wife's marriage had been riddled with holes. And Dr. Sun was caught in the vortex of the gang. "Song of Life": Ning Can (played by Fan Bingbing) is a female singer, and Yue Wei (played by Wang Xuebing), who has always liked her, helps her write songs. However, a terminal illness strikes, so Ning Can chooses to leave silently. Yue Wei learns of his girlfriend's death and is depressed, but unexpectedly receives a text message reply from Ning Can. The surprising story unfolds from this. "Mountain Area": Everyone in the village thinks that Lao San (played by Ge You) is a lazy person. On this day, Lao San got a mobile phone left by a painter (played by Sun Zhou), but the poor and backward village did not allow him to smoothly enjoy this modern tool. He began to run around for this mobile phone, and his fate took an unexpected turn. "Mountain Disaster": The profiteer Teng Shaoyan (played by Qiu Xinzhi) usually has a corrupt character and low morals. On the verge of life and death in the mountain disaster, he called his relatives and friends for help, but found that no one was willing to believe him anymore. Can he escape the clutches of death? How to repent for his past evil deeds? At this moment, he has mixed feelings in his heart.