Imdb Movie Info: http://www.imdb.com/title/tt0485924/
Movie Outline: One night, a female demon attacks Rick, a contentedly married man. Under the spell of the demon, he takes a beautiful young woman, Ariel, off to an isolated house for a weekend fling. There, bizarre and frightening things happen, and accidentally Rick kills Ariel. But she won't stay dead. He soon realizes that she is the demon that first attacked him

Jane Morton, a psychiatrist from Dublin in deep mourning following the accidental death of her husband and son, is assigned to work on the case of Dorothy Mills, a teenaged girl in a small village who tried to strangle a baby.
Runtime: 102 mins
Imdb Info: http://www.imdb.com/title/tt1034306