A Stranger on the Beach by Campbell Michele

Caroline Stark’s beach house was supposed to be her crowning achievement: a lavish, expensive space to showcase what she thought was her perfect family. But after a very public fight with her husband, she realizes things may not be as perfect as they seem: her husband is lying to her, the money is disappearing, and there’s a stranger on the beach outside her house.

As Caroline’s marriage and her carefully constructed lifestyle begin to collapse around her, she turns to Aidan, the stranger, for comfort…and revenge. After a brief and desperate fling that means nothing to Caroline and everything to him, Aidan’s infatuation with Caroline, her family, and her house becomes more and more destructive. But who is manipulating whom in this deadly game of obsession and control? Who will take the blame when someone ends up dead…and what is Caroline hiding?