Desperate to reignite the spark in their once passionate relationship, Bryan (Aaron Paul) and Cassie (Emily Ratajkowski) rent a secluded villa in the Italian countryside. However, their romantic weekend is immediately threatened when Cassie befriends a handsome local stranger, Federico, filling Bryan with jealousy. As Federico gets closer to Cassie, he begins to take advantage of the young couple's growing mistrust, turning them against each other. Soon Bryan and Cassie find themselves caught in a deadly and voyeuristic game of cat and mouse, discovering that the person you love the most may be the person you can trust the least.