The Bamber family, with the exception of son Jeremy, are found dead at White House Farm. But the case might not be as open-and-shut as first thought.

Cast: Tom McCall, Cressida Bonas, Mark Stanley, Jude Barrowcliffe, Nate Barrowcliffe, Grace Calder, Freddie Fox, Alexa Davies, Nicholas Farrell, Amanda Burton, Gemma Whelan, David Hunt, Thomas Coombes, Sean Gilder, Stephen Graham