I think this movie is from the 1990s. I remember this creature (or something) is a short ugly midget type that comes out of a small statue thing. A Marine husband dies and wife is alone with the baby.
In whole movie the short ugly creature kidnaps the baby and mother chases it for her baby. Meanwhile she meets this nice guy who will help her out to find her baby.
The creature comes out of this small green color bottle statue, they actually found that somewhere or they got it as a gift from someone. In the beginning it tries to come out as that dead Marine husband, but it just resembles him. Later in the morning something it comes back to its natural state and it takes the baby and runs away. In the end it maybe goes back to that small statue.