'The Better Sister' ending explained: Who killed Adam

Jessica Biel on Being Drawn to Psychological Thrillers After ‘Candy’ and ‘The Better Sister’: “We’re All Capable of Goodness and Evil”

Jessica Biel talks psychological thrillers, starring in "The Better Sister" and balancing complex roles with motherhood and creative storytelling.

'The Better Sister' ending explained: Who killed Adam

Jessica Biel and Elizabeth Banks play sisters swept up in a murder investigation in the Amazon thriller. Jojo Whilden/Prime Jessica Biel as Chloe and Elizabeth Banks as Nicky in 'The Better Sister' season 1 finaleKey PointsJessica Biel and Elizabeth Banks play estranged sisters swept up in a murder investigation on The Better Sister.The whodunnit ends with a number of surprises, from the identity of Adam's killer to the abrupt death of a support…

Interviews: Elizabeth Banks, Jessica Biel, and more talk the pitfalls of sibling rivalry and murder for The Better Sister

Having an estranged sibling is difficult enough without adding murder to the mix. In The Better Sister, Chloe (Jessica Biel) and Nicky (Elizabeth Banks) avoid each other at all costs, but when the murder of Adam (Corey Stoll), a mutual lover, forces them together to confront their pasts, old skeletons escape closets, and the list of suspects gets longer. The Better Sister, created by Olivia Milch and Regina Corrado, based on the novel by Alafair…