A young girl named Coraline moves into a new apartment with her mom and dad.
She seemed very upset and does not like the new house. She is far away from her friends.
Coraline finds a doll that looks exactly like her, and she is very curious. One of her neighbors explains that she shouldn't interact with the doll, and that other children have gone missing because of it, but she does not listen.
As she is exploring the house, she finds a door much tinier than she is. She fits through and discovers a world much like her own, but "better".
She enjoys spending time with her "other mother" until she finds out that she cannot leave that alternate world. Her "other mother" agrees to free the missing children and her parents if she wins a game of hide and seek.
Coraline wins the game, and traps her "other mother" in a well, never to be let out again. The souls of the missing children are set free