Never Talk to Strangers

Never Talk to Strangers is a 1995 American thriller film directed by Peter Hall and starring Antonio Banderas and Rebecca De Mornay.

Days into this new relationship, Sarah begins to get death threats and strange gifts, such as dead flowers. As she gets more romantic with Tony, the gifts get more extreme. Her lifelong cat is dismembered, at which point Sarah goes to the police. Sarah then hires a detective and has Tony followed, and breaks into his apartment only to discover that he has a file on her, including information about her mothers death in a car accident, twenty years before. Tony is actually investigating her, trying to learn the whereabouts of a former boyfriend of hers who had disappeared suddenly.Ultimately, it is revealed that Sarah suffers from multiple personality disorder, brought about from her abuse as a child, and from her father brainwashing her to cover up the murder of her mother. Her alternate personality is responsible for all of the strange gifts, and for murdering her exboyfriend. When Tony goes to her fathers house, Sarah under the control of her alternate personality follows him, shoots and kills him there, and then kills her father when he tries to intervene. When Sarah reverts to her normal personality, not remembering what has happened, she presumes that Tony was crazy and killed her father, and that she killed Tony in selfdefense. In the end, she is seen entering into a relationship with Cliff. ........

Source: Wikipedia