After writing love letters for his best friend Lu Weiyue for three years to catch up with the best actor Lu Yan, Shen Niantang originally thought that this secret "ghostwriting" career would be buried forever when the two broke up. Unexpectedly, Lu Yan lost his memory in a car accident. He only remembered the handwriting and temperature in the letter, and found her by following the handwriting. He mistook the "love letter object" in his memory for her, and used absurd and paranoid methods to "pursue" her again, while Shen Niantang was forced to repeatedly swing between lies and sincerity. The truth about the contemporary writer, the pressure from the agent, the betrayal of best friends, and the storm of public opinion ensued. A love affair with a misplaced identity from the "gunman" to the "right owner" finally revealed the truth that "every 'I like you' was written by her herself" in thousands of love letters and a wedding that attracted everyone's attention.
