Alexandra Roach on what it was like playing a hacker in new series

Welsh actor Alexandra Roach joins us to give us a taste of her series Nightsleeper, the high-stakes thriller that takes place entirely aboard a hijacked train. She shares what drew her to another mind-bending mystery, how she prepped for the hacker-heavy role, and what it was like working with Sam Claflin on her next thriller Lazarus.