Tang Siyu was imprisoned by wealthy businessman Yang Haoyu and became his "800th bride" - a sacrifice used in strange rituals. She was not a passive victim, but actively walked into the trap with the purpose of revenge in exchange for treatment for her seriously ill grandfather. After careful planning, she narrowly escaped from the heavily guarded villa by using a substitute agreement with the bodyguard Hualong who secretly helped her. However, the escape was just the beginning, and she soon found herself trapped in a deeper game between Yang Haoyu and Hualong. She is no longer prey, but must use the evidence in her hands to win her freedom and the truth from this dangerous game.
