The Stranger Within (2013)

Seeking solace after a harrowing experience, celebrated actress Emily Moore and her psychiatrist husband, Robert, retreat to an idyllic, secluded Mediterranean island. Their tranquility shatters on their first night with the arrival of a distraught young woman, her hands stained with blood, babbling about her boyfriend's fatal hiking accident.

Robert, ever the healer, invites the girl into their home, but her increasingly provocative actions ignite Emily's suspicions. Is this woman merely seeking refuge, or does she pose a sinister threat to their marriage, perhaps even Emily's very existence? The island paradise becomes a stage for a dangerous game of deception.