A sudden fall accident ended Su Yao's life. At the funeral, everyone looked sad and cried bitterly, but her twin sister Su Nian was like a mirror - her sister's death was definitely not accidental, and the real murderer was mixed in with the mourning crowd, performing the most realistic sad drama.
The affectionate brother-in-law Lu Shen, the close best friend Lin Ke, and the abnormal-looking mother-in-law, all three people around them have their own concerns and are full of flaws: Lu Shen holds a five million accident insurance policy and hides an affair with his best friend; Lin Ke hides betrayal and panic under his exquisite disguise; the mother-in-law looks on with a cold eye, and her words are full of concealment and hesitation.
Su Nian probed step by step, investigated secretly, searched diaries, collected evidence, and dealt with everyone, peeling away the layers of confusion about marital betrayal, best friends turning against each other, and family members hiding things. But as the truth continues to be dug, a secret that subverts all perceptions gradually emerges: Su Nian has long been obsessed with the paranoid coveting of her sister's life, imitating her appearance, recreating her life, and eager to replace her.
The elder sister has long been aware of her younger sister's ambitions, has seen through the ruined marriage and the coldness of the people, and is willing to use her own exit to fulfill Su Nian's life. But Su Nian, on the other hand, takes the last step personally on top of her sister's fulfillment, carefully weaves lies, and puts all the blame on others.
The murderer who cries at the funeral is never the bystander. When everyone was deceived by the illusion, Su Nian successfully took over her sister's real estate, inheritance, life and identity, and lived in this world for her forever as Su Yao. A replacement and calculation at the cost of life finally came to an end.
Purpose: tearing apart the hypocritical facade of family, marriage, and friendship, exposing human greed, paranoid possessiveness, and extreme self-interest; using the identity substitution of twins as the core, it interprets disguise, calculation, and the coldness of the human heart, and explores the tragic core of desire devouring the true heart, representing good and evil, and the abyss of human nature.