Tom Mathias comes with abandoned his life. He is an excellent but troubled individual. Despite his flaws he could be an fantastic detective, who understands the key to solving the crime lies only in where you look for truth, but the best way to look. By the coastline to the badlands of the hinterland's sand areas, Y Gwyll is actually a collection of four two-hour stories which can be very original and local, yet ageless and universal.