Your Sims are leaving the suburbs for the hustle and bustle of apartment life! They're moving into a apartment building full of interesting neighbors and a wide variety of pets. Your Sim can adopt pets of their own to play with and care for. As the manager of the on-site pet spa, your Sim can earn Simoleons by making sure that the local pets get the right treatments to keep them-and their owners-happy. From loveable cats and dogs to all-new exotic animals including slithery snakes, colorful birds, and cuddly rabbits, your Sim will experience all the hilarious unpredictability of owning pets while enjoying their exciting new apartment lifestyle!

The game begins with your Uncle Bill going on an expedition and leaving you to take care of the apartment. You can also take care of the pets already in the apartment of the beginning of the game. Soon after the game starts, the janitor will tell you about a lost puppy, and give it to you until the owner is found. This pet and more are ones that owners and various people will drop off, asking for you to take care of the pet for a few days.