When love and sin are entangled, every heartbeat is a knock on the door to hell.
He Ming and Jiang Tingting buried their unholy love deep in their hearts, but they didn't know that this shady relationship had already become the fulcrum of their fate.
An unexpected manslaughter tore apart their pretense of calm and ignited the intertwined fire of desire and fear. From panic cover-up to premeditated harm, from the tearing of love and hate to the annihilation of conscience, they sink step by step on the edge of the cliff of human nature, with lies and blood at every step.