This goal arc was part of the Halloween Event from October 30th until October 31st, 2018. It will not be available to play after that time.
If you have a baby in the game, you'll receive a call from your publicist, Maria Holmes sometime around October 31st to tell you about the amazing trick-or-treating event that's going on in California.
The event will run for 24 hours after you receive the call, so be sure to collect all the prizes!
You can take your baby to different locations in the game. In each those locations, two or three actors hired by local businesses will be present, dressed in Halloween attire.
Each actor will give a different kind of reward, like cash, XP, energy, k-stars or even photo booth backgrounds.