Three years ago, her fiancé Shen Zhiyao disappeared mysteriously on their engagement night, leaving only a ring engraved with their names and a meaningful message: "Don't come to me."
Three years later, Gu Qinghan received a letter with an ambiguous signature. The familiar handwriting made her heart shake again. The letter wrote: "March 15th, Baixi Bridge, when the moon rises above the willows." A small town, a key, an abandoned villa, her fate seemed to be pushed into the abyss by some invisible force.
Baixi Town, this seemingly peaceful town, hides countless secrets. The legends in people's mouths, the hidden forces, and Shen Zhiyao's traces all point to the truth deep in that villa. On the way to pursue his lover and the truth, Gu Qinghan unexpectedly met the cold and mysterious Lin Lanchuan. His appearance made everything more complicated and confusing.
As clues are gradually revealed, Bai Xi's past gradually emerges. Love and betrayal intertwined, truth and lies collided. Gu Qinghan searched for answers in the fog, but found that he was just a pawn in a conspiracy. When truth and emotion collide, how should she choose?
Should we continue to pursue Shen Zhiyao, or should we trust the new guide who appears in the fog? And what kind of secret is hidden behind that key?
Purpose: love and freedom