In the new horror-thriller Anna, in select theaters on Friday, Mark Strong plays John Washington, a detective with a unique ability: He can enter the minds of other people and sift through their memories. Armed with this gift, he investigates a baffling case revolving around young Anna (Taissa Farmiga). She looks innocent enough, but she stands accused of attempted triple homicide. Is she capable of such a thing? Is it possible that she's harboring lethal secrets?Washington is bent on discovering the truth, but as this exclusive clip reveals, venturing into the mind and memories of a troubled teenage girl is risky business. Watch the clip below.