"She Is Not My Wife" tells the story of auto mechanic He Yue, who discovers that his neighbor has long occupied his parking space, and senses something strange from scattered slippers, the unusually sunken rear suspension of a vehicle, and a fake wall. Facing the suddenly returned "wife," he sees through the impostor using details of everyday life, ultimately exposing a scam targeting demolition funds and cooperating with relevant personnel to rescue his real wife.