A closet holds a mystery. It once belonged to a photographer and has been locked for years. The protagonist finds boxes of old photographs in it. The past and his relationship with a distant father return. The closet, now a dark room, is where the magic of photographic techniques leads to a rapprochement between the two. The vocabulary and concept of photography translate graphically into emotions. The chemistry of silver salts rebuilds their bond. Everything shatters with a quarrel and a cockroach infestation.