The Museum is an ‘art crime’ thriller which is mainly located in the National Museum of Wales in Cardiff. The series was created and written by Fflur Dafydd and was produced by Boom Cymru.
The drama was described by S4C as a heritage thriller, which exposes the dark and dangerous world of art crime. Filming of the series began in January 2021, with the first broadcast at the end of May 2021. It was broadcast in the usual drama slot at 9pm on Sunday evenings.
On 26 December 2022, all episodes of the second series were released for streaming on Clic and iPlayer. The second series was shown weekly on S4C starting from Sunday night, 1 January 2023.
The series was nominated for BAFTA Cymru award, the RTS Cymru award and a Celtic Media award. The series has been sold internationally and has been shown on Britbox in America and Canada, the AXN Mystery channel in Japan, and the EITB channel in Spain.