Mariano Martínez is a screenwriter going through a rough patch who feels that his magnum opus is yet to come. His agent, Maite, gets him the last chance he was waiting for. To focus on his work, he decides to isolate himself in a cabin in the middle of the forest to avoid distractions and finish the script in a week. When he arrives, except for a fake ornithologist who hangs around the area and a rude landlord, everything seems ready for him to get down to work. But the muses do not deign to appear, and Mariano begins to despair. Until, suddenly, a light illuminates his path, but only for a short time...