Intruder

An elderly man lives alone. One day, an alien invader arrives at his home. An unlikely cohabitation begins between the old man and the strange intruder. The alien gradually becomes his only friend, and the man begins to open his heart. Then, one day, the alien suddenly disappears, summoned by a mysterious command. An alien who invaded Earth, or an illusion born of loneliness. Who was the being that had stayed by the old man’s side?