Bedelia by Vera Caspary
The story: Man falls in love with and marries Bedelia: pretty, ultra-feminine— the perfect wife—who’s pregnant with their baby. But then his growing suspicion and mounting evidence points to her being a criminal... perhaps a serial killer. She's linked to too many men who've died under mysterious circumstances!
This is the 1940s femme fatale classic that made it big in Hollywood. Bedelia (1946) starred the kittenish Margaret Lockwood, who could melt any man with her eyes.
I was rooting for Bedelia the whole time.
Narrated by Nicole Vilencia.
-Aretha Bright