Ghosts - Season 1

Criminal Jack Rudkin is serving a life sentence. On the other side of the country his wife Suzi has become close to his brother Les. After a near death experience, when he is stabbed by another prisoner, Jack discovers that powers of the mind will allow him to visit and observe his wife without his physical body leaving the prison cell. He becomes convinced that Suzi and Les are having an affair and he plans his revenge... (imdb)

At a home for the elderly young nurse Maureen is having an affair with the much older Dr Evans, one of the patients, Margaret Randolph, is keen to tell her about her own youth when she was a nurse in the same place, where she was put in charge of looking after the "emotionally challenged" wife of head of the hospital Dr Maradick who is convinced that her husband killed their young daughter. (OVGuide)