It is based on Parke Godwin's "Influencing the Hell Out of Time and Teresa Golowitz", which was published in The Twilight Zone Magazine (January 1982).
The Devil reminds Bluestone that Golowitz committed suicide that night and reveals that the reason was depression over her social isolation.
In an effort to ensure her suicide attempt is averted, he asks her to promise to meet with him tomorrow to talk about her singing prospects, but she will not commit to it.
Right before he leaves, Teresa tipsily tells him she is getting a ride home with another girl from the party, thus avoiding her previous fate of stepping in front of a bus.
Anderson was a veteran of the 1960s The Twilight Zone, and his casting would have specifically been a reference to his playing Gabriel in the episode "A Passage for Trumpet".