Strangers in the Villa by Robyn Harding

From the international bestselling author of The Drowning Woman, a psychological thriller about a couple rocked by infidelity who moves to a villa in Spain's Costa Brava to rebuild their relationship, only to welcome a pair of visitors who have no intention of leaving.

Sydney Lowe's life in New York is shattered when her husband, Curtis, admits to a meaningless affair with a client. Begging for forgiveness and vowing to prove his devotion, Curtis suggests the couple retreat to a remote hilltop house in Spain to repair their marriage.

High above the Mediterranean, Sydney and Curtis are working on the isolated property and their relationship when a pair of Australian travelers turns up at their door in dire need of help. Lonely for companionship and desperate for free labor, Sydney and Curtis invite the attractive young couple to stay. But as the days pass, dark secrets come to light, the Lowes' bond is tested, and not everyone will leave the villa alive.