The ghost, the devil and the angel

This is from the NaNoWriMo Adopt-a-plot folder where writers post extra plots they won't be using.

#20: "The story follows a ghost, who for some reason or another decides to become alive again, and needs to work with a devil and an angel to do so." -- Tikvah Ariel

Use it as a 10-15 minute writing prompt or go for a longer piece.