After being shot in the house which Sykes attempts to rob, Oliver is taken back to Fagin's lair to recover, rather than being nursed back to health in the countryside by the Maylie family, as in the novel. It is Nancy's informing Rose, and a highly sceptical Mr Brownlow, of Oliver's whereabouts that results in her demise at the hands of Sykes. Her ghost continues to haunt him when he returns to London with Oliver, resulting in him choosing to hang himself in the sewers as a means of escaping the London crowds who chase him.
Brownlow
Oliver