In the movie Aperture Kids and the Mysterious Neighbor, Alex becomes suspicious of her neighbor's behavior and disappearance. She enlists the help of her friends Jessica and Christina to investigate and find out what happened. As they delve deeper into the mystery, strange occurrences begin to happen, including a hidden room in the neighbor's house and mysterious symbols appearing on photos they take.
As they unravel the mystery, they discover that the neighbor was involved in some sort of supernatural cult that practiced dark magic. They uncover the truth behind the missing person and how the neighbor was involved. The trio must use their intelligence and bravery to put a stop to the dangerous cult before more harm can be done.
Throughout the movie, there are elements of suspense, supernatural, and mystery that keep the audience on the edge of their seats. The character development of Alex, Jessica, and Christina adds depth to the story and makes it easier for the audience to invest in their journey. Overall, Aperture Kids and the Mysterious Neighbor is a thrilling movie that showcases the power of friendship and the dangers of getting involved in something you don't fully understand.