This Spanish drama follows Adrián, a man whose life is upended when he invites a young, free-spirited couple—Paco and Isa—to stay with him in his apartment. What begins as a gesture of hospitality quickly turns into a suffocating and manipulative psychological game. As the boundaries of the household blur, the trio enters into a volatile "three-in-a-row" dynamic of shifting loyalties and sexual tension. The film explores the dark side of the counterculture era, showing how the trio's attempt at unconventional living descends into a toxic power struggle where each person tries to dominate the others' emotions and space.