At a lively Halloween party hosted by his cousin Asmodeus and his boyfriend, Lucifer, dressed as a sexy nun, reconnects with his daughter Charlie and his best friend / ex-wife Lilith. Lilith mistakenly assumes Lucifer is dating a stranger at the party who, coincidentally, is dressed as a priest. She encouraged him to just go for it and give him a literal push in the right direction.
The "priest," named Alastor, introduces himself, and after some banter, asks Lucifer to pretend to be his boyfriend to avoid unwanted attention from another guest. Lucifer agrees and they both start their play, spending their time sharing drinks, laughter, and dancing together.
As the night progresses, their playful act starts feeling more genuine, blurring the line between acting and genuine connection.