Abigail Pink is lying in bed with the flu when a Guardian Angel, meant for someone else, crash lands on her bedroom carpet. Abigail is at first delighted with her new friend, who shrinks her wings, discards her gown and dresses up like grungy pop star, Madam Meow. Abigail and Arella become firm friends but the relationship turns sour as Arella's tricks and petty jealousies ruin Abigail's home and school life. Abigail needs to be rid of Arella, but the angel doesn't want to go.