Tagline

“She’ll break you”

I feel this is a good tagline, as it is both a reference to Shelly's brutal demise (at the hands of Constance) and also a play on the easily breakable nature of dolls. As well as this, the direct threat - “She will break you” - presents a challenge to the audience, which would hopefully, in the real world, result in lots of box office sales from people interested in testing their nerve.

Note: Constance is the name of the doll.