Wanting to get a higher paycheck as a nurse, Rose accepts an assignment, taking care of Peter, a crippled old man with dementia. While staying with the old man, Rose suffers sleepless nights feeling like something or someone is watching her. As she starts having creepy visions and paranormal experiences, she realizes that something is strange about the old man.“当日，我在水路上遇过刺客，侥幸毫发无伤。身边亲卫死伤却惨重。从那一日起，我心中立誓，绝不会放过幕后主使。就是隐藏得再深，我也要将他揪出来。”