Its about a man,he was walking by and a car got in an accident and only the baby survived.the man took the baby and he started to take care of her himself.he figured out that he couldn't deal wit it so he gave her up and in the end he got her back.
p.s,its old

A Simple Twist of Fate (http://en.wikipedia.org/wiki/A_Simple_Twist_of_Fate)?