Have you ever been in a haunted mansion? Well, Nando, Tina and Gartufo have been invited to one. What they don't know is that their host is the evil Maximalón, and that once inside it won't be easy for them to get out.

Our protagonists receive a message through the computer inviting them to a birthday party. When they arrive at the address they had received, they find a terrifying house. The children enter the house, and the front doors slam shut, trapping them in the mansion.

The characters have to find the exit through the house, but everything is closed and they are also being watched. When they finally manage to deactivate all the cameras that are watching them, they will find Maximalón's laboratory, but he has activated a bomb that the protagonists will have to deactivate quickly if they don't want to fly away with the house.