Jonathan Noel living in the seventh floor of a building in Paris has been working as a security guard of a bank for 30 years. However, the appearance of a dove changes his peaceful life, driving him to make a great business of his job.

Therefore, he feels hollow and believes that he is on the verge of ruin and death.

One day, he bumps into a beggar and feels relieved by the fact that his life was not that terrible. That night he falls asleep, pledging to commit suicide. In a dream, he comes to realize that he is stuck in the basement and then wails in search of people. With a crash of thunder, he awakes from his dream and returns to his room. Strangely on his way, he feels liberated. When he reaches his room, dove already disappeared and only thoroughly cleaned hall welcomes him.