Dark Bar (1989)

Anna is a musician and her career is about to take off. He has a sister, Elizabeth, with whom he is not on good terms because he takes drugs and always asks her for money. But Elizabeth thinks she has found her fortune and telephones her sister leaving a message on the answering machine. Then she goes to the Dark Bar where she is killed. Anna herself is threatened by a voice asking her for something she knows. But Anna doesn't know.