Volcanologist Cassidy Harwell's time away from her old hometown didn't prepare her for the weirdness she encounters when she returns to Arizona to help a friend understand strange phenomena in the community. There's a bizarre humming that only a few can hear and people are sex-crazy beyond the norm. Skeptic Cassidy can't believe what's happening.A violent incident brings her face-to-face with police officer Jeremy Tate, a man who has always held a special place in her heart. Now he's one hot man she can't resist.Jeremy has always wanted Cassidy in his life, but not when investigating the odd phenomena in town might throw her into danger. He's along for the ride, ready to protect her and tackle the overwhelming heat growing between them.