Spoilers ahead for A Good Girl’s Guide To Murder season 1 and the book.
Nat and Andie were best friends, and Dan was deeply connected to the Bell family.
In the bookA Good Girl’s Guide To Murder, Barney is a golden retriever.
Given Dan’s suspicious nature, it is not entirely shocking that Dan would cover up a crime.
Even more shocking was Dan admitting he had an affair with Andie when she was 15.
These new tidbits of informationchanged the direction of Pippa’s investigation entirely.
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This revelation also meant that someone else had been responsible for killing Barney and Andie Bell.
The narrative planted the clues, butit only ignited a twist when Pippa put them together.
Andie was only passing the time with Sal, and Sal just thought Andie was attractive.
The fact that Andie sold drugs at events like calamity parties proves she has a darker side.
This twist is more surprising for Andie than it is for the audience.