When two loves collapsed on a rainy night, four young people were thrown into a crossroads of destiny.
Lin Wei and Gu Yan, the rational analyst and the unruly architect, were the most unlikely encounter. She was used to controlling everything, and he advocated freedom of spontaneity, until that missed call became the trigger for the collapse of trust - Gu Yan, who was seriously injured, desperately called Lin Wei before falling into coma, but no one answered because of the negligence of his best friend Su Qing's boyfriend Lu Chen. Misunderstanding spreads like wildfire: Lin Wei believes that Gu Yan lost contact when he needed it most, while Gu Yan only remembers the cold busy signal in his confusion.