Intriguing and thought provoking in equal measure.

Kate suffered a traumatic head injury and met Rob while she was in hospital. Since then he has looked after her and put his house in Cornwall at her disposal as well as buying her a Tesla so she can get around. They only spend weekends together as he works in London during the week and she does not know very much about Rob as he is quite evasive and likes strict routines. One day however he tells her that he has met his doppleganger and fears that at some point in the future he will lose all that he has made to his double. Kate wants to ask him more about this but the moment passes and while she is intrigued she puts it to the back of her mind. When he next returns from London, Rob appears different to her - is he her Rob or a stranger? Is she losing her mind or suffering a relapse and if not will anyone believe her suspicions.