Bump in the Night(1991)

Martha "Red" Tierney used to be a hot-shot reporter, but that was before alcohol took over her life. One morning Martha's son, Jonathan, leaves for school, stopping first to meet his father for breakfast. But Jonathan never meets his dad. Instead, he is picked up by Lawrence, a pedophile who has been watching him. Now Martha must overcome her alcoholism and her bitterness towards her ex-husband and use her old investigative skills to find her son before it's too late.