Two scientists have discovered a way to send emails back to the past. "Think of all the things we can do!", one of them exclaims. It's a dangerous line to have in your screenplay as it invites the viewer to explore all the possibilities of that set-up, when you as a screenwriter won't.
As you can probably guess, one of the scientists has a childhood tragedy that he will be tempted to prevent, and, as you can probably guess, messing with time has unforeseen consequences, but those consequences never stray very far beyond the personal, the stakes remain relatively small, and the movie never realizes the full potential of its premise. Consequently, the ending is a bit of a damp squib.
Terug Naar Morgen would have made for a good episode of The Twilight Zone, but you're left with the nagging feeling it could have been more.
Review by Friend_of_Millhouse from the Internet Movie Database.