Loosely based on 2016 horror film Inside, a film about the home invasion of a widowed pregnant woman by a stranger who seeks to take her unborn baby...

2014 was one hell of a year for Shining Popstar Tiffany Hwang. From a new relationship to losing not only Jessica, but all of Girl's Generation, Tiffany continued to face many hardships, but remained strong and continue to persevere through everything that life throws at her. As she would seek comfort and solace with Nichkhun, her loving boyfriend, the following year and a half would test their relationship. In spite of their busy schedules, Tiffany would put her all into the relationship and do her best to make it work. Sure, it was a two-way street, but the Eye-Smile Princess wasn't about to give up on the man that she loves with all her heart. Finally, in October 2016, the lovely couple would announce that they're tying the knot in November of that year. Following two years of marriage, in Spring 2019, Tiffany and Nichkhun would happily announce that they are expecting their first child. Sadly, this love story would take a tragic turn. During a stormy night, the couple gets into a car accident. That same night, Nichkhun would pass away, succumbing to his injuries. While her baby is okay, Tiffany is now partially deaf as a result. A couple months later, closer towards Christmas, Tiffany has moved back to the United States, to Los Angeles and attempts to rebuild her shattered life as she prepares for the arrival of her darling little angel -- Nichkhun's final gift to her.

On the night before she is scheduled to be induced, Tiffany receives a visit from a very unwelcome stranger, a mysterious but predatory woman (Song Hyun-Ju) who seeks to take her unborn baby away from her. Disoriented and cornered, Tiffany must fight to both protect her baby and survive the night...The woman who has invaded her home, is about to learn the hard way that nothing is more fierce then a mother's love...and that she messed with the wrong woman. As Tiffany fights for her life, will Jessica arrive on time to save her friend?