Lu Yuzhou, a top FBI profiler, was ordered to hunt down the highly intelligent serial killer "Mirror Tong". The murderer's murder method is strange, imitating historical unsolved cases but hiding a private symbol - only Lu Yuzhou can understand it, which is the childhood password between him and his lost twin brother.
As the investigation deepened, Lu YuZhi discovered to his horror that the murderer was none other than Lu YuYe, the brother who was thrown into the abyss by fate. This is not simple revenge, but an elaborate "reunion ceremony." Lu Yuye pressed forward step by step with bloody "love letters" and invaded his brother's life with twisted intimacy, trying to prove: You and I are one, your light is just a disguise, and darkness is our common destination.
During the pursuit and psychological attack and defense, Lu Yuzhou was forced to face his repressed childhood trauma, and found that he could actually understand his brother's madness. When the final confrontation takes place in the haunted house of childhood, the two face the ultimate choice: destroy each other, or recognize each other in the abyss?
This is a story about light and shadow, sin and love, tearing and redemption. It explores: When a loved one falls into darkness, do you choose to cut off the bond or accompany him to perish? And redemption, sometimes must be accomplished in the most tragic way.
"Brother, I hope you love me as crazy as I love you."
"Good night, Xiaoye."
Intent: Love can penetrate darkness, and salvation begins with understanding.
