Did you watch Sliders? Now, make it darker, better science, and more focused on the Jerry O'Connell than the worlds. 
 Quantum Physics combines with a Dean Koontz style story to help bring the Infinite Universes theory to life. It doesn't require a degree in science to enjoy, but good writing is coupled with some decent research to provide a thrilling ride that doesn't jar the reader out of the seat with bad science. 
 As attached as he is to carp in the pond, I wonder if he ever read Flatland: A Romance of Many Dimensions ???