Jess and Jason. Those are the names Rachel gave the “perfect” spouses whose lives she watches day after day from the train window. They seem to have everything Rachel herself lost not so long ago — love, happiness, well-being...
But one day, as she passes by, she sees something strange, mysterious, shocking happening in the yard of the cottage where Jess and Jason live. Just one minute — and the train moves on again, but that is enough for the perfect picture to disappear forever.
And then Jess vanishes. And Rachel realizes that only she may be able to solve the mystery of her disappearance. What should she do? Will the police take her testimony seriously? And should she interfere in other people’s lives at all?