A Letter From Hell

Chloe and Hannah are best friends.
One day Chloe dies in a car accident.
Hannah is convinced that its her fault.
Then she recives a letter in mail.
A letter from hell.
A letter from her dead friend Chloe.
After reading the letter she is on a mission
A mission to rescue Chloe from hell.
But the question is.........
How is she going to escape?