Living alone in the highest mountains of Portugal, Carlos has spent years writing letters to his beloved late wife, suspended in a time that no longer exists. His solitary world is disrupted when a filmmaker, on a quest to find a mysterious lake, stumbles upon him. What begins as a chance encounter soon evolves into a deep, yet fleeting friendship. To her, Carlos slowly reveals the depth of his grief, his memories, and his inner abyss. In their shared moments, the boundaries between their lives blur, offering both a glimpse of healing amidst the shadows of longing.