In the movie "Skeleton Key," the concept of skeleton keys symbolizes access to hidden secrets and the ability to unlock anything. While skeleton keys themselves are not inherently illegal, the film explores themes of control and manipulation, particularly in the context of the supernatural and the dark practices of voodoo. The illegal aspect arises from the misuse of such keys to invade privacy or commit nefarious acts, reflecting the moral implications of having unrestricted access to others' lives and secrets.

A skeleton key is a type of master key that is designed to open multiple locks, particularly those with simple pin tumbler mechanisms. It typically has a notched or cut design that allows it to bypass the specific locking mechanisms of various doors. In the context of the movie "The Skeleton Key," the title symbolizes themes of unlocking hidden truths and secrets, as the protagonist discovers the dark past and magical elements tied to the house and its inhabitants.

A skeleton key is a type of key designed to open a variety of locks, particularly those with a simple mechanism. It typically lacks the specific cuts that would be needed for more complex locks. While it can open many standard locks, it does not literally open every lock, especially modern locks with advanced security features. In the context of the movie "The Skeleton Key," the term also has a metaphorical significance, relating to themes of unlocking secrets and accessing hidden truths.

"The Skeleton Key" is a supernatural thriller with elements of horror, but its scare factor is more psychological than jump-scare heavy. The film builds tension through its eerie atmosphere, unsettling themes of voodoo, and suspenseful storytelling. While it may not be terrifying for seasoned horror fans, it offers a creepy ambiance and intriguing plot twists that can be unsettling. Overall, it's more about suspense and intrigue than outright horror, making it suitable for viewers who enjoy psychological thrillers.