What is the hBO series with Reese Witherspoon?

The HBO series featuring Reese Witherspoon is "Big Little Lies." It is a drama based on the novel by Liane Moriarty and follows the lives of several women in Monterey, California, as they navigate complex relationships, motherhood, and a murder investigation. Witherspoon plays Madeline Mackenzie, one of the main characters, alongside an ensemble cast that includes Nicole Kidman and Shailene Woodley. The series received critical acclaim and won multiple awards during its run.