ITV The Sister Catch up on the ITV Hub Full Series Series 1 available Psychological thriller about a devoted married man whose life is turned upside down when a ghost from his past turns up on his doorstep with some shocking news. 4 episodes available to watch Share this programme: Copied to clipboard Share on Facebook Share on Twitter Copy link to share Full Series Series 1 Episode 1 Mon Monday 26 Oct 9pm Nathan is shocked when an unwelcome face from his past turns up on his doorstep. Episode 2 Tue Tuesday 27 Oct 9pm Nathan discovers his loved ones are under threat. Episode 3 Wed Wednesday 28 Oct 9pm As Nathan and Bob grimly dig up the woods, the truth about that night is revealed. Latest Episode 4 Thu Thursday 29 Oct 9pm After Bob's true intentions are revealed, Nathan fights back with everything he can.