In the small town of Maplewood, a young woman named Sarah inherits her grandmother's old house after her passing. Excited to start a new chapter in her life, Sarah moves into the house and begins to settle in. However, strange things start happening soon after she arrives.
Sarah starts hearing strange noises at night, and items in the house start moving on their own. She begins to feel a sense of unease and fear in her own home. One night, she receives a mysterious phone call from an unknown caller warning her not to open the door.
Ignoring the warning, Sarah opens the door to find no one there. But from that moment on, the supernatural occurrences in the house escalate. Doors slam shut, lights flicker, and Sarah starts to see a ghostly figure lurking in the shadows.
Desperate for answers, Sarah starts to research the history of her grandmother's house. She discovers that a tragedy occurred in the house years ago, and the spirit of the deceased has been haunting the property ever since.
As the hauntings worsen, Sarah realizes that she must confront the vengeful spirit and put an end to its torment. With the help of a local medium, Sarah attempts to communicate with the ghost and uncover the truth behind its presence in the house.
In a climactic showdown, Sarah must face her greatest fears and make a final stand against the malevolent spirit. Will she be able to banish the ghost and find peace in her new home, or will the darkness consume her once and for all? Don't Open the Door is a chilling tale of suspense and supernatural horror that will keep audiences on the edge of their seats until the very end.