With her free-spirited daughter away at college and her "hip" ex-husband living across the country, Charlotte has grown used to being alone. For the most part, she prefers it. She relies on familiar routines: manicures, grocery shopping, game shows. But at night, no matter how hard she tries (and in spite of the Dream Machine her daughter Emily sent her) she can't stop her logical mind from running wild -- imagining burglars, strange noises, and all manner of trouble that might befall her fearless daughter.