EW has revealed the first official poster for the upcoming big screen adaptation of the graphic novel, The Scribbler. The film stars Katie Cassidy as the title character while John Suits directed the thriller. Also featured in the main cast is Garret Dillahunt, Michelle Trachtenberg, Eliza Dushku, Gina Gershon, Michael Imperioli, Billy Campbell and Sasha Grey. Rounding out the supporting cast are Ashlynn Yennie, Kunal Nayyar and T.V. Carpio.

The Scribbler concerns Suki (Cassidy), a young woman confronting her destructive mental illness using “The Siamese Burn,” an experimental machine designed to eliminate multiple personalities. The closer Suki comes to being “cured,” she’s haunted by a thought… what if the last unwanted identity turns out to be her?

You can see the poster above. The film was written by Daniel Schaffer who also wrote the graphic novel.

The Scribbler is expected to hit theaters on May 1, 2014.