Revenge Deal With The Devil RDWTD

Curses that are placed on people works on some and doesn't work on some, that depends on how aggrieved the curser that decides to lay the curse.
Amelia Smith in her agitation as she felt her life slipping away after the death of her child, laid a curse on her scum of a husband and his mistress that her spirit would forever hunt them.
Then the devil himself decided to grace the curse and gave her the opportunity to transmigrate to hunt her husband and his mistress getting double portion of the things that were taken from her no matter the consequences and repercussions she must get her revenge.
But he really there just to help, or for his own personal interest.
"Give it up, you can't run from me no matter how you try." The devil breathed into Amelia's ears heavily trying to contain his anger.
"You are mine, and mine alone." He yelled turning his back at Amelia, ripping the heart of the human that stood beside him with his sharp nails.