![The Sinner by Petra Hammesfahr](https://static.bookofthemonth.com/cdn-cgi/image/format=auto,width=3840/https://static.bookofthemonth.com/covers/list/TheSinner.jpg)
![The Sinner by Petra Hammesfahr](https://static.bookofthemonth.com/cdn-cgi/image/format=auto,width=3840/https://static.bookofthemonth.com/covers/list/TheSinner.jpg)
Thriller
The Sinner
by Petra Hammesfahr
Quick take
Everyone knows she did it—what no one can figure out is why.
Why I love it
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Book of the Month
We've teamed up with The Sinner—the new series starring Jessica Biel—to bring you the book that inspired it all.
For anyone who loves a good psychological thriller, The Sinner has an irresistible premise: on a crowded beach in broad daylight, a woman commits a seemingly random act of violence. Everyone knows she did it—what no one can figure out is why.