"Twelfth Seconds" tells the story of detective Zhao Yichen's six-month pregnant wife who suddenly disappeared, leaving only an 11-second call to the police. After 9 years, Zhao Yichen found a strange family through a warning call. Here, he found that his wife had died for a year, leaving behind a daughter who was unable to speak due to depression. The cause of his wife's death was strange, and her identity became a mystery. Even so, Zhao Yichen decided to take care of her. own daughter
In the process of investigating the truth, Zhao Yichen discovered many surprising secrets. For example, his wife's real name is not Hu Jiaying, but Xu Han. Xu Han and his twin sister were adopted by the Xu family. Xu Han was afraid of the illegal forces of the Xu family, so he abandoned his sister and ran away, but fell into the hands of drug dealers. After escaping, Xu Han changed her name to Hu Jiaying. Zhao Yichen also learned that the husband of Xu Han's younger sister Xu Lian was Yang Qian. In order to keep the Xu family's secret, Yang Qian mistakenly killed Xu Lian who was pretending to be Xu Han. A bizarre case gradually surfaced.