Hinterland - watch tv series with matching subtitles.
On the run from his London past, DCI Tom Mathias, a brilliant but troubled man, isolates himself on the outskirts of a town filled with secrets as dark and destructive as his own. Partnered with the intelligent and complex DI Mared Rhys, they form an engaging relationship as they embark on solving cases that involve the ultimate anti-social crime, murder.