"Locke & Key" is an American fantasy series based on a comic book series. The story revolves around a mother and her three children who move to their father's hometown after the tragic death of the family patriarch. As the plot unfolds, the children discover that the Locke family mansion is filled with old magical keys that grant their possessors extraordinary abilities. Additionally, the youngest Locke befriends a peculiar spirit living in a dark well near their home.