The setting is in a futuristic house in the future owned by two parents of two spoiled children are wondering why the nursery that shapes into what their children are thinking has been different than what it usually is and decide to check on it.
LET US OUT!
The start of the rising action was when they went into the nursery and found it to be in a Savana and they see two lions eating something and the lions started to chase them so they ran away. They confronted their children during dinner to find out what was going on. According to the kids the room wasn't an Savana and when they checked it wasn't!
The father decides to shut the nursery down after he finds a bloody wallet and a bloody scarf that looked like his and his wife's. The children beg for him to turn it on for a moment and they shout that they hate him and wishes for their deaths. After a while he concedes and allows the nursery to be on for a bit longer before shutting it off for good.
During the climax of the novel there were pleas for help coming from the nursery. It was their kids! The parents raced to the door, but then it slammed behind them. Their two children lay at the nursery door holding it shut.
. . .
They hear calls from their children to come quick and when they get in the nursery the door shuts behind them. Their kids locked them in the nursery and the two lions approach the couple. They both start screaming and realized how they recognized the screams from the room because it was theirs!
The kids enter the nursery and lay out a picnic as their parents get mauled by the lions in the background. The the psychologist they hired comes in and asks where their parents are as vultures fly above. The children lie and say they will be over soon.