Stillman, a heartbroken physics student, builds a time machine when his girlfriend breaks up with him. Going back in time, he attempts to save their relationship by fixing every mistake he made—while dragging his best friend along in the process.

Holly finds her world turned upside-down when she suddenly finds herself incapable of lying. (Don’t you hate when that happens?) It’s because of a wish her niece made to Santa Claus. And now, with Christmas coming up fast, she has to come to terms with her natural penchant to want to fib while trying to do the right thing. And that’s no lie.