American corporations are using the North American Free Trade Agreement by opening large maquiladoras right across the United States–Mexico border. The maquiladoras hire mostly Mexican women to work long hours for little money in order to produce mass quantity products. Lauren Adrian, an impassioned American news reporter for the Chicago Sentinel wants to be assigned to the Iraq front-lines to cover the war. Instead, her editor George Morgan assigns her to investigate a series of slayings involving young maquiladora factory women in a Mexican bordertown.

Delves into the realities of an aging society and centers on Ye Xiaolin – a former killer turned caregiver. She infiltrates and kills seniors under the guise of offering care, but her life takes an unexpected turn after a chance encounter with zookeeper Ma Deyong. As their fates become entangled and detective Zhou Ping begins to investigate the string of murders, a gripping story unfolds. The film raises awareness of aging-related societal issues by focusing on the themes of death, family dynamics, and the dignity of aging.