After visiting their late mother's grave, Monica Anderson and her younger sister Angie return home hoping for a quiet night. But when news breaks of a serial killer targeting young women in the area, their unease grows-and soon, strange noises and fleeting shadows confirm someone is watching them. What begins as paranoia quickly turns into a nightmare when a relentless intruder forces his way into their home. With their phones jammed, doors sealed, and every attempt to escape thwarted, Monica and Angie must rely on their bond, their instincts, and sheer will to survive. As the night unfolds, the sisters face not only the threat of a brutal killer but also unsettling truths that connect the terror to long-buried family secrets. By dawn, survival will come at a cost neither of them could have imagined.