What film directed by Don Mancini has the main character of a murderous doll and is the fourth installment in its francise?  
Tiffany (Child's Play): Tiffany Valentine-Ray (also known as "The Bride of Chucky") is a murderous doll and an antagonist featured in the fourth, fifth, and sixth installments of the "Child's Play" franchise of horror films. Tiffany (Child's Play):  She is portrayed by Jennifer Tilly in both live-action and voiceover in "Bride of Chucky", "Seed of Chucky" and "Curse of Chucky".
i don't know