The Better Sister is an American thriller television series that explores the complex dynamics of family and secrets. After the brutal murder of her husband Adam, Chloe finds herself navigating the elite social circles of New York with her son, Ethan. The investigation into Adam's death reunites Chloe with her estranged sister, Nicky, revealing long-hidden family secrets. Together, the sisters confront their troubled past as they face the present mystery surrounding Adam's murder.