不速之客悄然降临，打破了宁静的夜晚。流淌的美好时光电影

　　A young couple Mira (Abbie Cobb) and Todd (Sean Faris) hire a live-in nurse (Lyndon Smith) to be the caregiver for their sick son, only to discover that she is an "angel of death" intent on replacing Mira through any means necessary.