Canterville Ghost (1986)

Alyssa plays a young girl, who's family moves to the canterville castle
that her family inherited.Soon Jenny (alyssa) finds a ghost, who is 300 years old,
who scares people.Jenny is having a tough time, because her mother died 4 years ago,
and her father now has Lucy, but Jenny doesn't quite like her new stepmom.
So Jenny asks the ghost to help get rid of her.
Then her and the ghost become friends, and she tries to help him die.