Movie bout a teen and a baby?

this movie is kinda old but its about a teen girl i think and some guy steals the baby shes taking care of and she has to save the baby. and the guy makes the girl go through some maze and there are wierd creatures and like their is also a stair maze thing(like those things with like upside down stairs and stairs in wierd ways) and thats as much as i can remember from the movie i need someone to help me figure out the name of it..anyone know? pleae help i watched that movie when i was litttle and i need to watch it again.