Hellena looks forward to Halloween every year, but this year is different than the others. Hellena's best friend, Eve, holds a strong distaste for the holiday but Hellena encourages her to let loose and have fun, which ultimately leads them down unexpected paths for the night.

A certain masked man catches her arm and Hellena can't resist a good time. But when she realizes who he is, she must make the choice to succumb to her desires or fight them.

The Devil's Night Duet consists of Eve of Screams and Hell's Hallow. They are interconnected standalone reads and can be read in any order.