David doesn't realise it, but he looks similar to a British movie star who is all the rage at the moment. When the star suddenly pulls out of a tour of Australia to promote his latest movie, David gets hired to be pretend to be him at a few public events.
The luxurious life of a star is fantastic for David until he see that there are big responsibilities that come with fame. He does the right thing, which is not really up to him because he is pretending to be someone else. His actions put him in all sort of danger.