"My sister will never commit suicide!"
Policewoman Li Wenjing took over a case of "a college student's attempted suicide", but discovered in the hospital that the dying victim on the hospital bed was actually her long-lost sister Li Wenting. Regardless of her leadership's objections and the pressure of being "suspended," she vowed to reveal the truth. The isolation of roommates, the slander on the Internet, and the excessive concern of Director Yang of the welfare home are all weird. She found out that her sister was connected to a mysterious WeChat "w", which led to a human trafficking chain under the guise of a welfare home.
When the "sister's" friend attacks her roommate for revenge, and when the clue points to a country cabin, Li Wenjing enters the tiger's den alone, is knocked unconscious and imprisoned, and is shocked to realize that the person lying in the hospital is not her sister at all! All this is a shocking scam that has been set up by the director of the orphanage for several years in order to let his biological daughter go to college instead of his younger sister!
"Sister, it's me who will save you this time."
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