The Better Sister, based on the novel by bestselling author Alafair Burke, is an 8-episode electric thriller limited series about the terrible things that drive sisters apart and ultimately bring them back together. Chloe (Jessica Biel), a high-profile media executive, lives a picturesque life with her handsome lawyer husband Adam (Corey Stoll) and teenage son Ethan (Maxwell Acee Donovan) by her side while her estranged sister Nicky (Elizabeth Banks) struggles to make ends meet and stay clean. When Adam is brutally murdered, the prime suspect sends shockwaves through the family, reuniting the two sisters, as they try to untangle a complicated family history to discover the truth behind his death.