The modern female forensic doctor Jiang Li traveled through time and became a substitute princess. On the wedding night, she used a silver needle to detect the murderous intention of the poisoned wine. Facing the bloodthirsty Prince of War, she showed her scalpel and said, "Let me do an autopsy to help you solve the case." From then on, the Prince's morgue became her home turf. When she used modern criminal investigation methods to solve a series of unsolved cases, the cold-hearted prince looked at her with increasingly hot eyes.