Why did Vera choke Ambrose?

Harry discovers what happened that night with Vera. They both were playing sexual mind games with each other. Sexually aroused, Vera choked him until he was unconscious.

Why does the song trigger Cora?

The sound of the song “Hugging and Kissing” triggers a traumatic memory of the death of Cora’s sister: an event she never had the chance to truly mourn and deal with (Cora’s memory recovery issues are also exacerbated by the drug induced memory loss).

Is The Sinner based on true story?

It wasn’t based on any true events. The story was twisted as much as it could be and then the detective, of course, trying to unearth all the truths possible.

Why is the show called The Sinner?

It is named after Petra Hammesfahr’s 1999 novel, which served as the basis for the first season. Bill Pullman stars as a police detective who investigates crimes committed by unlikely culprits and attempts to uncover their motivations.