Due to a conspiracy or obsession, the business emperor Lu Tingyuan imprisoned Su Wan and built a blazing cage called "love" - using power as a lock and tenderness as a bait, he not only controlled her life with extreme possessiveness, but also protected her from the wind and rain in the dark. Unwilling to be reduced to a vassal, Su Wan struggles between resistance and sinking, but gradually discovers the trauma and affection behind Lu Tingyuan's cold shell; and behind the entanglement between the two, there is also an undercurrent of family grudges and past misunderstandings. In the end, after experiencing suspicion, betrayal and redemption, the passionate possession turned into a two-way fetter, and the cage finally became a harbor to protect each other.
