Twinstallation is a series of loosely knit discussions about how being a twin has affected my life and my twin sister Meredith’s life. The user’s physical movements dictate the flow of the videos through an algorithmic structure, thus creating an opportunity for an embodied experience of the story. I draw on Freud’s concept of the “uncanny” to engage with the affective dimensions of twinning. I include Lev Manovich’s framework for viewing interactive media to understand the psychological connections users make when viewing new media work. I suggest that, by combining interactivity in non-linear storytelling and the act of participating in an installation, the user’s experience may be enhanced and they may experience a greater sense of agency.