In this tense narrative, a couple, Oliver and Serena, struggle with new parenthood and the need for help. They reluctantly consider their neighbor, Mary, to babysit while they adjust to their routine. Mary, however, is later revealed to be a dangerous impostor named Magda, who has been involved in multiple child abduction cases. When Oliver receives a warning about Mary’s true identity, he instructs Serena to lock herself and their baby in another room. The police arrive just in time, capturing Magda before she can escape with their child. The story serves as a cautionary tale about trusting appearances and being wary of strangers.