When Kateri Douglas is lured by her manipulative and destitute boyfriend into joining a dangerous contest called Phobia, she is confronted with her worst fears.

She not only faces the course but also a forbidden attraction to her mortal enemy, Magnus Dylan. As a Ren, the male version of a Siren, he and his brothers could be responsible for the extension of their whole species if they find out she is a Siren.

When Kateri discovers that Magnus is not just attractive, but her mate, she must figure out how to fight their past, her family, and her now ex-boyfriend to keep her only chance at love.