The First Mistake: A dark and gripping Welsh crime drama

Old ghosts never rest easy.

When the body of a young woman is found at the festival of Mari Lwyd, Mallory Dawson is called to the scene. But something is different about the murder of Gwennie Jones, something that will dredge up a part of Mallory’s history that still haunts her to this day.

Fourteen years earlier, Gwennie’s aunt Jaci went missing in London. The investigation — Mallory’s first as CID — was a disaster. With accusations of police incompetence still following, the pressure is on ...