Filming has begun on the six-part thriller series "Rellik," starring "Game of Thrones" alum Richard Dormer and "The Crown" actress Jodi Balfour.

Created and written by Harry and Jack Williams, the serial-killer drama is expected to air on the BBC in the United Kingdom and Cinemax in the United States.

It co-stars Rosalind Eleazar, Paterson Joseph, Paul Rhys, Michael Shaeffer and Li¦rke Winther.

"We are really pleased to be working with the BBC again and to be partnering with Cinemax for the first time. 'Rellik' is a dark thriller tonally very different to anything we've done before and we're looking forward to bringing it to the screen," Harry and Jack Williams said in a joint statement Friday.

"Jack and Harry are two of the most imaginative TV writers around and we're thrilled BBC One is home for 'Rellik,' their boldest series yet," added Christopher Aird, BBC executive producer.

"We are delighted to be working with the brilliant Harry and Jack Williams and Two Brothers Pictures on this bold, original and twisting thriller after our successful collaboration of two series of 'The Missing,'" remarked Willow Grylls, executive producer for New Pictures.