This is an essay about a short film named “room 88.” It’s about one man’s time traveling. He made a time traveling machine by himself. One day he tried to travel through time with his machine. He just wanted to get the time back. However some people in the future appeared in front of him. One woman told him that she was the biggest fan of him because he was famous as the inventor of the machine in the future. He seemed to grow upset. Finally he remembered Einstein’s words that time exists so that everything doesn’t happen all at one time, and activated the machine again. They disappeared. After watching the film, I just think the mechanism of time traveling is complicated. The movie is quite short, about 10 minutes. But I really enjoyed it.