Jessica Biel & Elizabeth Banks Break Down The Better Sister Ending Twist & the Clue Viewers Missed

Warning: This article contains spoilers for Prime Video’s The Better Sister

Elizabeth Banks and Jessica Biel’s twisty whodunnit The Better Sister kept us on the edge of our seats for eight episodes while we waited to learn who killed Adam, finally. After a finale episode full of turns, the show’s leads are breaking down that ending.

By the end of the series, we learn that Nicky (Banks) killed Adam (Corey Stoll) after learning that he physically abused her estranged sister Chloe (Biel). After successfully getting the murder charge against Nicky’s son, Ethan (Maxwell Acee Donovan), dropped, the sisters finally discuss the truth.

“It felt wonderful to say it out loud, because, you know, I knew the whole time that I did it,” Banks tells SheKnows of that moment, revealing there was also a blink-and-you’ll-miss-it confession from Nicky earlier in the show.

“What’s interesting is when you go back and watch the show, I literally say out loud, ‘I’ll just say I did it. I will take the fall for it.’ And everyone’s like, ‘Hahaha, no, you won’t. That’s insane.'”

Ultimately, as Banks explains, Nicky doesn’t confess because she doesn’t want to miss a chance to keep her son in her life. “The harm that’s being done to my son is heartbreaking to me, but it’s also very complicated, because I’m estranged from him as well. I’ve not been able to see him, and right now I’m the only person [who] can see him. So I think [Nicky] cherishes that.”

As we see in the finale, the sisters make a last-ditch effort to bolster their lies to prevent the police from uncovering the truth. After framing Bill Braddock (Matthew Modine) by planting the murder weapon in his home, they also get Detective Nancy Guidry (Kim Dickens) taken off the case by leaking information about her past to the press.

“There’s also an agreement made by the two of us,” Banks says. “We have to protect him now. We have to continue to protect him. So we’ve just learned this lesson that lies are bad for our relationships, but we’re going to keep a really big one from Ethan.”

“We’re really evil,” Biel jokes. “The right man is dead, and we need to keep it that way.”

The show ends with one final twist that strays from Alafair Burke’s 2019 book of the same name. In the final shot of the series, Jake (Gabriel Sloyer), Chloe’s lover, is seen lying dead on a beach with no obvious conclusion about how it happened, which perhaps leaves the show open to a second season.

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