"Nine Perfect Strangers" is based on the book of the same name by "Big Little Lies" author Liane Moriarty. The series takes place at a boutique health-and-wellness resort that promises healing and transformation as nine stressed city dwellers try to get on a path to a better way of living. Watching over them during this ten-day retreat is the resort's director Masha (played by Nicole Kidman), a woman on a mission to reinvigorate their tired minds and bodies. However, these nine "perfect" strangers have no idea what is about to hit them.