Ismael will leave the country with his girlfriend, but the night before the trip he spends many hours awake, unable to sleep. A thought anguishes and makes him run away from home and wander the streets only to reach the home of Teresa, his best friend. During a night stroll through the empty streets of Madrid hidden feelings rekindle in both of them: Ismael is willing to stay for her, but Teresa knows it's too late to let herself go.