Memory Hammer

A confused man suddenly came to town. He seems to have lost his memory, and he can't remember who he is. Doraemon hits the man's brain with a future hammer and visualizes a memory of him, the image of himself as a great rich man living in a castle. Nobita and Doraemon starts looking for the man's house in a panic. Suneo, who saw him begins to show a kind behavior for the man. The image that came out when the man hits himself with the hammer was of a gangster. "I might have been a gang", the man said. Eventually the man chases after Suneo and his mother with the hammer. Then, Doraemon finds that the castle was part of a set of movies. The man is an actor and a villain star there. Immediately they went to tell the man, the things that Doraemon saw, but the man used the hammer multiple times such that he ends up in a dazed state two more people.