"When a Snail Falls in Love" is the title of a popular Chinese television series first aired in 2016, based on the novel by Ding Mo. It tells the story of detective Ji Bai and criminal profiler Xu Xu, who solve crimes while gradually developing romantic feelings for each other. Xu Xu is described metaphorically as slow as a snail when it comes to love, which plays into the show's title. The series was well-received and popular both in China and internationally. It also inspired a 2023 Thai remake with a similar storyline involving a rookie genius in psychological research and a police investigator who slowly fall in love while solving crimes. The title "When a Snail Falls in Love" metaphorically highlights the slow and gradual nature of the romantic development between the protagonists in these dramas.
So, when a snail falls in love is a figurative and poetic expression related to the storyline of these dramas, indicating a slow but meaningful progression of love in the characters' relationships.
