During a war, a resistance fighter (the partisan) meets a mysterious stranger one night. They talk deeply, and the stranger impresses the partisan so much that the partisan comes to trust him completely. The stranger reveals he is actually the leader of the resistance and urges the partisan to keep faith in him, no matter what happens next.
Later, the partisan sees the stranger helping the enemy. Sometimes the stranger seems to be assisting the resistance, and other times he appears to be betraying them by handing patriots over to the enemy. Despite this conflicting behaviour, the partisan continues to trust that the stranger is on his side.