Joe´s mysterious journey through time

Joe, a farmer, 36 years old, a journalist for a local newspaper, lives in a village near Vienna called Tulln, likes chocolatey raisins and is about to get divorced.
One morning he wakes up in a different timeline, which, according to Robert Horwarth, a physicist, is caused by the mysterious phenomenon of "time-shifted oversleeping," in which timelines switch.
Joseph - unintentionally stranded in a parallel time - lives, loves and works here under the identity of "Joe Farmer."
His only vague hope of returning to his old real life rests on the shoulders of Professor Browns of Columbia University in New York.
Will Joseph - aka Joe Farmer - ever be able to return to his world?
And if so, what does he want in the first place?