I saw it when I was younger, The most I can remember of it is towards the end I think there was a teenage girl writing letters to some guy for her mom. The guy was and it was a serial killer and he would come in and draw a romantic bath with candles and spread rose petals over the bed and lay out Lingerie for the girls he was planning to murder.
‘Lisa’…. with Cheryl Ladd and that girl from My Two Dad’s. Hope this helps:)