Niko is essentially a vampire with PTSD and was then cursed by witches.  Frankie is a doctor and kitchen witch with some trauma of her own.  Frankie made her attraction to Niko clear but he shot her down.  But unknown to her the decline wasn't because he didn't like her, more because he wants her too much but is afraid that she won't feel the same intense tug.

When Frankie and her niece and nephew are involved in a car accident, Niko jut about loses his mind and becomes uber protective.  He essentially moved them in with him while she recovers.  

As the story unfolds Niko and Frankie's supernatural traits become evident to each other and as more attempts are made on Frankie's life and those connected to her, Niko has to learn that he has to gamble on losing her to win her.

There were a few confusing things in the storyline, such as does Frankie become immortal if she mates with Niko? However, I did enjoy the telepathy and the kids attitude to the paranormal world was quite sweet and refreshing.  The opposites attract storyline between Gia and a certain werewolf is calling to me and I really hope that Augustus gets a HEA too!