[s4e17] Delusions Of Grandview -

The story follows Melinda Gordon as she investigates a series of bizarre hauntings at a local kindergarten that was once part of a mental institution called . The hauntings begin when students start exhibiting strange, synchronized behaviors, leading Melinda to discover that the school was built directly over the "disturbed" ward of the old hospital.

The concept of asylums being repurposed for public use is a common trope in ghost lore, often drawing from real-life histories of state hospitals in the mid-20th century. [S4E17] Delusions of Grandview

The "synchronized" movements of the children in the episode's opening are often cited by fans as one of the most memorable and unsettling "scares" of the season. The story follows Melinda Gordon as she investigates