Gameplay consists of using search queries to go through a database of short clips of a series of police interviews with a woman wanted for murder. No, you can't just watch the clips in order, otherwise it wouldn't be a "game".
Since nobody actually played it, I'll just tell you that you discover that the woman is actually a pair of twins who share the same life until they fall in love with different men, one of them gets pregnant, and kills one of the men accidentally while arguing about him cheating. Then you find out you're (as in you, the person sitting in front of a computer searching a database) are the daughter, trying to understand your mother's actions years later.
Yes, it's basically the plot to The Prestige except not told very interestingly. In the world of video game journalists, a derivative story told with barely any interactivity is something to celebrate.