 " The Unquiet Dead " is the third episode of the first series of the British science @-@ fiction television programme Doctor Who , first broadcast on 9 April 2005 on BBC One . It was written by Mark Gatiss and directed by Euros Lyn . In the episode , alien time traveller the Doctor ( Christopher Eccleston ) and his companion Rose Tyler ( Billie Piper ) investigate the deaths of several people in Cardiff , Wales , and find that they are being killed by a parasitic alien species. everybody's dead.
The episode is set in Cardiff, Wales. The Doctor and Rose are called to investigate the deaths of