After witnessing the tragic suicide of an elderly woman, Mia (Jodie Whittaker) is left unnerved as she finds, on the deceased, a photograph of herself and her former lover (Dougray Scott). Mia gains access to the woman's flat hoping to find some answers, only to find the place filled with own possessions. Confused and disturbed, Mia is left fighting her past to see if she can change the future.