A film poem to commemorate the 50th anniversary of the Aberfan disaster, written by Owen Sheers and performed by a stellar cast of Wales's best-known acting talent, including Michael Sheen, Jonathan Pryce, Sian Phillips, Eve Myles and Iwan Rheon, with some contributions from the local community.

Tom Mathias comes to Aberystwyth having abandoned his life in London. He's a brilliant but troubled man. Despite his faults he is an excellent detective, who knows that the key to solving the crime lies not in where you look for truth, but how you look.