Well it has that swings and roundabout aspects to it.
The core concept is kind of there? A withdrawn, introverted character who goes through a very.. humdrum life, but has a really vivid imagination always daydreaming about exciting adventures out in the world. Then something happens and he gets pulled into exactly the kind of thing he fantasised about.
Sure, it goes from wandering into dreams of being the action hero, the thrilling spy and skirt chaser to instead being more of a voyeuristic, see the world through someone elses travels. But the core of that spirit is there.