I could be wrong as there were no credits at the end of the episode, but I think this (with the Halloween party) was written under headwriter Susie Bedsow Horgan. Though we know Doug Marland was first credited as headwriter sometime in November 1985, he *might* have been there beforehand (October), tweaking scripts and storyline points though SBH was still being credited as HW. I'd venture to say that the Marie Kovac mystery was possible tied deeper into the Doug Cummings storyline than originally intended.
A few observations about this episode:
Andy originally was on in the late 80s/early 90s...she owned a restaurant/bar called Andy's. Had dark hair and kind of frew spirited. She married and moved to California..leaving Wanda in charge of her business.
Flashforward a few years later, she came back as a blonde..townboy..and wanting to be a cop. Had a crush on Luna's brother Dylan, paired briefly with Kevin (during 2 bad recasts) before being paired with Antonio.