In Lacey's Petshop the player must help lacey run her petshop by giving the customers the perfect pet best suited to their wants. The player is given multiple ways of changing the pet to meet the customers request. However, the requests become more and more uncomfortable, going from giving the customer a clean and cute puppy to giving a turtle a set of human-like teeth. At the 7th customer a dog appears with a distorted face and the screen cuts to an image of Lacey with the text next to her reading "uh oh! you clicked the BAD DOG! You #### a mistake". More and more distorted imagery appears on screen until it turns to black.
The game changes to a point and click. When the player tries to enter the house a cat with no skin blocks the way until they go left to collect the skin back from a bird who stole it and return in. Then they can go into the house. Going left leads into a room with 4 pigs eating flowers at a dining table. The screen cuts to some text reading:
"I've always known what you are. From the moment you first touched me to when I found myself stepping over remains of your skin glued to the floor. You have no regard. I had none either. You squealed like a pig. Just like a pig. This had been my childhood dream. The one you took from me. I collected all those bruises for years. My spine hurts as if a needle went through each segment. Once I got used to it I didn't think about it anymore. But you made me think about it forever when you made that mistake. You made a mistake. You took my angel away. You took my angel away. You took my angel way you took my angel away you took my angel away you took my angel away you yet--"
Going left leads to a room with a cage in the corner. Lacey asks the player to make her enter the cage and when inside remarks "Yes, I know. No one forced me back inside. But this pain just hurts so comfortably." She finds the key inside which allows her to unlock the door to the upstairs of the house. Entering the bathroom allows the player to click on the mirror where Lacey looks at her reflection, and she looks exhausted. Looking for too long, however, makes a video of a real person wrapped in wires appear in the mirror, with text about how "These are the real girls games" flicking on screen. Lacey begs the player to leave.
The screen changes to a first person video of Lacey looking out the window while talking about how she wants to get a cat, that she's been in her room for days because "he" is under the bed and would look at her. She then thinks about how she wants to go shopping and buy CDs of her favourite music. the screen then changes to text reading:
"My sweet little doggy. My little angel. I couldn't take it anymore. You can hurt me all you'd like but you weren't allowed to take it away from me. I will let you rot."
The game goes back to the house. Entering room 2 of the upstairs shows the text "I can click here to end it all". When Lacey goes inside she sets herself on fire. A song plays with the lyrics being:
For years he was barking up the wrong tree
worried about his sins becoming too visible on my skin
he always worried about the silliest things
but me
and when he turned his back
I was the dog that bit his neck
The game ends with Lacey waking up in her bed with the player being told that it was all a dream.
