Earthbound

David and Ellen Cooper arrive at a secluded beachside cottage, seeking to revive their troubled marriage during a second honeymoon. However, their plans are complicated by the alluring presence of Marianna, a mysterious woman who visits David whenever Ellen is away. As David becomes entranced by her, he uncovers unsettling truths about Marianna's past and the dark secrets that could threaten not only their relationship but also their very lives.