The Night Caller (1998)
For 11 years, Beth's life is limited to working nights in a convenience store while her daytime hours are spent caring for her bed-ridden, bitter and abusive mother. All that keeps her going is a voice on the radio of a psychologist, Dr Roland. Her obsession grows to the point where nothing, not even murder, will stop her from getting to the woman she desires! suicide, schizophrenia, hallucination, radio, babysitter, friends, murderer, dead mother, child molestation
ETC.
