written by Stephen Butchard ; producer, Grainne Marmion ; director, Julian Farino ; a Pinewood Television and SunnyMarch TV production for BBC in co-production with Masterpiece
a Ruby Television production in association with AL Films for BBC, co-produced with WGBH Boston ; screenplay by Paula Milne and Sarah Williams ; produced by Joanna Anderson, Vicky Licorish, and Grainne Marmion ; directed by John Alexander