No Business Like Snow Business

 a limited-time questline that was released on December 17, 2021. It the main questline for Act 2 of the Holiday Whodunnit 2021 Event, progressing through it  all of the Act's personal prizes. It preceded by the main Act 1 questline, Out Cold. It succeeded by the main Act 3 questline, Ho-ho-d'oh.

Quests
*Only appears if the player has Mary Tannenbaum.

**Only appears if the player has Wiggum.

End
"Façade unlocked!"

- System Message.

End
"Drive the Sleigh"

- System Message.