In order to save her seriously ill mother, the ordinary girl Su Wan was forced to sign a contract with the business emperor Lu Tingyuan to have a child through her belly, and became a canary in a gorgeous cage.
She thought she was just a cold fertility tool, but gradually she discovered that she was strikingly similar to Lin Wei, Bai Yueguang's girlfriend who died mysteriously and prematurely.
An old case, the secret of the "Starlight" cruise ship, has the fate of the three people strangely intertwined.
When the substitute's mask is torn off, and when the buried truth emerges, how will this imprisonment that began with a transaction come to an end?
Should you sink into the fate of a substitute, or break the contract and take back your own life?
