Yr Amgueddfa is a Welsh-language crime drama television series created and written by Fflur Dafydd and produced by Boom Cymru for S4C. Set within and inspired by Amgueddfa Cymru – National Museum Wales, the series dramatises the self-destructive decline of Della Howells, a newly appointed museum director who begins an affair with a mysterious younger man and is drawn into the world of art crime.