When Song Qi [Fan Bingbing] stumbles upon her boyfriend, Liu Dong [William Feng]’s affair with her best friend, Xiaoxi [Huo Siyan], her life begins to crumble and she is pulled into a dark journey of revenge and murder. The story unfolds as a tense, spellbinding spiral that forces Song Qi to revisit buried memories and to reckon with the limits of her own mind, inviting viewers to question what is real and what is a construction of guilt.
Confronting Xiaoxi about the affair, Xiaoxi claims that Liu Dong truly loves her rather than Song Qi. What follows is a volatile confrontation in which Song Qi’s words sting and her actions grow increasingly unsettled. Xiaoxi finally breaks and phones Liu Dong, and in a flare of passion and rage, Song Qi uses Xiaoxi’s orange scarf to strangle her, an act that will haunt her from that moment forward.
That night Song Qi returns to Xiaoxi’s house, where she seals Xiaoxi’s fate by burying her beneath bricks in the garden. She then turns her attention back to Liu Dong, who initially denies the affair but ultimately admits to his feelings for Xiaoxi, sending Song Qi and their relationship into a cruel, downward spiral driven by jealousy and fear.
A policeman named Liu Jian visits Song Qi a few days later to inquire about Xiaoxi’s sudden disappearance. Song Qi denies any knowledge of Xiaoxi’s whereabouts, but the investigator remains wary. As days go by, Song Qi begins to suffer from vivid nightmares and unsettling hallucinations of Xiaoxi visiting her at night, blurring the lines between memory and reality. When Liu Dong shows the orange scarf to Liu Jian, the tension intensifies, and Song Qi feels the net closing in as she frantically tries to shield herself from suspicion.
She flees, driving into the wilderness toward a lake, hoping to escape the creeping sense of inevitability. In a tense moment at a restaurant, she spots Liu Jian and slips away through the kitchen, fleeing into the forest where a blow to the head leaves a bloody mark. Her car roars back onto the road, but a tragic misstep leads to a fateful collision as she inadvertently hits Liu Jian. She collapses in tears, dials the police, and then falls asleep, only to awaken in a world where a female officer questions her, and she learns that there is no officer named Liu Jian on record. The shock of this discovery deepens her paranoia, and she begins to suspect that the entire sequence of events around Liu Dong and Xiaoxi may not be what it seems.
What follows is a revelatory reckoning: Song Qi confronts the possibility that everything she has experienced in the days leading up to this moment is a distorted replay of her own past. In this crucial backstory, a younger Song Qi witnesses a murder in which her mother, Wang Meiling [Kong Wei], is strangled by her father, Wang Teihui [Yao Anlian], who uses an orange scarf to commit the deed. After the crime, Teihui disappears, and Song Qi is eventually adopted by Liu Jian, who has a son named Liu Dong. This haunting lineage helps explain the tangled emotions driving her present turmoil and foreshadows the fate of the relationships she clings to in the present.
As the truth comes into sharper focus, Song Qi learns that Liu Jian’s later trip to Xinjiang to visit her biological father ends in tragedy when he dies in a car crash. The realization shatters her, and the ashes of the past—her father’s cremation urn alongside her mother’s—become a poignant symbol of a complicated attempt to reconcile with a family history she cannot escape. The revelation reframes her entire experience, casting doubt on what she believed about Liu Dong and Xiaoxi—and about what is real and what has only existed in her memory.
At last, Song Qi tracks down the real Liu Dong at a quiet beach in Qinghuangdao, where a moment of shared longing gives way to a restrained, devastating honesty. They reconnect after a long absence, and the hush between them carries a powerful, unspoken truth: you have been apart, but you were never truly gone. In the closing exchange, Song Qi looks at Liu Dong and gently murmurs that the bond they've shared was never broken, a sentiment crystallized in their final, quiet embrace.
> Actually, you were with me the whole time.
