Gina (Blake Lively: The Shallows) and husband James (Jason Clarke: Everest) have an almost perfect marriage. After being blinded as a child in a nearly fatal car crash, Gina exclusively depends on James to feel and ‘see’ the world around her, and it appears only to solidify their extremely passionate relationship. While the two enjoy a colourful existence living in Bangkok, their relationship is upended when Gina receives a corneal transplant and regains her sight. With her restored vision, Gina experiences the world with a new sense of wonder and independence which James finds threatening. It is only when Gina suddenly begins to lose her sight again that she finally realises the disturbing reality of their marriage…