Having drifted apart, Martin invites his friend Tomaz to go to southern Brazil, where he is traveling to sort out a family inheritance matter. Tomaz is openly gay yet has never discussed this with Martin. Martin does know, however, and furthermore harbors an attraction for his old friend.

For their first feature, Brazilian directors Filipe Matzembacher and Marcio Reolon tenderly explore the nature of friendship and sexuality on the brink of adulthood. With a subtle script and powerful performances, Seashore submerges us in a spellbinding mood of unsaid words and interlocking eyes.