Jessica Biel Commits an Unthinkable Act in 'The Sinner' trailer -

What drives someone to kill? This question plagues Jessica Biel in the first trailer for The Sinner, USA Network’s new close-ended anthology drama.

Biel stars as a young mother, Cora, who commits a startling act: While lounging on the sand with her family by a lake, she fatally stabs a man in the neck in full view of everyone. Even more haunting is that she doesn’t know why. “I think there’s something wrong with me,” she tearfully tells her husband later in prison.

The act sparks an...