Same audiobooks.
Different story.

The Good Sister

“Having a title like The Good Sister might lead a reader to assume there is also a bad sister. Here we meet twin sisters Rose and Fern, whose mother was a sociopath. That upbringing affected Fern the most, so Rose cared for her sister during most of their childhood. Now adult women, Fern begins to come out of her shell and experience life on her own; she likes the freedom and the adventures. But Rose does not. When Fern makes a huge sacrifice to mollify Rose, the story grows more tense as it becomes clear who the good sister is and how bad the bad sister can be. Readers might change allegiances during the book, but no one will see the end coming! Highly recommended!”

Nancy Simpson-Brice, Book Vault