When a couple decide to spend their summer vacation in a small town on the coast of Portugal, they had no idea that they would be faced with a dark mystery that would lead to seduction and betrayal. Mar is an erotic thriller set in the beautiful coastal town of Peniche Portugal. It’s main characters Xavier (Lourenço Seruya) and Eduardo (João Santos Silva) visit a childhood friend Cristóvão (Diogo Tavares) who carries a dark secret that only his mother (Sylvie Rocha) knows. Sexual tensions rise until the shocking secret is revealed but only after someone’s fate is sealed.