SPOILER ALERT: This post contains spoilers for the full version of A Good Girl's Guide To Murder.
A Good Girl's Guide to Murder Cast Reveals Their Filming Secrets – BBC
The image of the red threads that unite the title of A Good Girl's Guide To Murder on the American cover by Holly Jackson refers to the complicated ending of the story, which has been adapted into a television series by the BBC.
The six-episode series, which launched on Netflix on August 1, follows the titular “good girl” Pippa Fitz-Amobi (Emma Myers) as she revisits the murder of Andie Bell (India Lillie Davies), which was blamed on Andie’s boyfriend at the time, Salil Singh (Rahul Pattni), who was known as Sal. Shortly after Andie first disappeared, Sal was believed to have committed suicide, and a text message confession from his phone about committing the murder left him guilty.
Determined to prove Sal's innocence, Pip continues to dig through the loose ends left by the police and investigators to discover that Elliott Ward (Mathew Baynton), her English professor and the father of her childhood best friend, was responsible for inflicting the head injuries Andie sustained before her death. The second person directly involved in Andie's death was her younger sister, Becca Bell (Carla Woodcock), who got into an argument with Andie and pushed her to the floor, where she choked on her own vomit and died because Becca didn't get up to help.