Amnesia is a one-off British crime drama television mini-series broadcast on ITV in March 2004, starring John Hannah as the protagonist, D.S.

Mackenzie Stone (John Hannah) is distraught after his wife's sudden disappearance on their fifth wedding anniversary, and strives tirelessly to discover what has happened to her.

Three months on, whilst constantly searching through missing persons reports, Stone comes across two cases: one involving a man named Paul West, who was reported missing after his wife and son were killed in a house fire, and the other the mysterious John Dean (Anthony Calf), an IT consultant who has lost his memory for unknown reasons and that he moved into the town only days after the fire.

At first he refuses, unsure that he wants to rediscover his past as he is happily married to Jenna (Jemma Redgrave), and has a good life - but deciding they need the money, agrees to do it.

[4] Part 2 While Stone doggedly continues his investigation into John Dean's mysterious past, his colleagues begin to harbour serious suspicions about his involvement in his wife's disappearance, but without proof, they can do no more than keep a discreet eye on him.