Robin Martine has destroyed witches all across the country, but since her confrontation with the demon Andras, Robin has had to deal with her toughest adversary yet: herself. While coming to grips with new abilities, she and her boyfriend Kenway make their way to the deserts of rural Texas, where new opportunities await.

Something lurks in this isolated town of Keystone Hills: a dangerous gang ruled by a husband who wields an iron fist over his wife and daughter. Robin vows to protect these Latina women from harm, but may be underestimating how powerful Santiago Valenzuela is… and how his shapeshifting powers may pose a threat to everyone Robin holds dear.