Firestarter

Innocence and beauty ignite with evil and terror...

First, a man and a woman are subjects of a top-secret government experiment designed to produce extraordinary psychic powers.

Then, they are married and have a child. A daughter.

Early on the daughter shows signs of a wild and horrifying force growing within her. Desperately, her parents try to train her to keep that force in check, to act normal.

Now the government wants its brainchild back for its own insane ends.