After a scientific experiment goes horribly wrong during a demonstration, a scientist finds himself trapped in an alternative reality that bears some similarities to our own, but also has some striking differences. In this other reality the Second World War had never occurred, mankind had not yet traveled into Space and Mt. Everest had not yet been conquered, just to name a few things. Also in this other reality he is no longer a scientist but rather a well known author. He also finds that he is married to a beautiful woman who he instantly falls in love with but who his alternate self never cared for. He has some difficulty convincing anyone that he is not actually who they think he is. With the help of a physics professor who believes his story, he finally manages to convince his 'wife' that he is not the man she knew before.