Jin Ling, a newlywed, was dozing on the sofa when she was woken by the ringtone of her husband Yu Lan’s phone. He was going to a dinner with his colleagues, and Jin Ling, left alone at home, was murdered by a hooded man known as the "serial killer."
Jin Ling woke up twice more, each time back at the moment she was woken by her husband’s phone. She again experienced her husband leaving for the dinner and the hooded man killing her. The third time, she went to the dinner with her husband, but when they returned, she still couldn’t escape being murdered.
When Jin Ling woke up for the fourth time, she finally realized she was trapped in a terrifying death loop. When she told her husband Yu Lan, he didn’t believe her. Only then did Jin Ling think of Gu Kai, her high school classmate. With Gu Kai’s help, after dying countless times, she finally managed to kill the hooded man.
But just as Jin Ling thought the death loop was over, she woke up again. Time had returned to the moment she was woken by Yu Lan’s phone, and she still couldn’t escape the loop. It turned out the killer was someone else...
