The film introduces Esther (Isabelle Fuhrman), who lives in a secure Estonian institution, presenting a clear threat to those around her. In a violent turn of events, she orchestrates an escape and makes her way to the United States, where she deceives Allen (Rossif Sutherland) into believing she's his daughter. While he falls for the ruse, Tricia (Julia Stiles), his wife, and their son Gunnar (Matthew Finlan) quickly become suspicious—though they too harbor hidden truths. The question is whether an unstable peace can be maintained, but unsurprisingly, it cannot. I honestly didn’t find myself invested in the outcome. Esther is easily integrated into the affluent American household (it's curious that there were no DNA tests with her supposed father?), and as events unfold, the narrative abandons any semblance of realism. The film demands we accept Esther as a personification of evil, but the plot contains so many inconsistencies that I constantly questioned its possibility—even within the realm of movies. Fortunately, it’s relatively brief, and director William Brent Bell moves the story along without unnecessary delays once the flimsy narrative begins. Ultimately, I found the entire experience too far-fetched, and the central character seemed more spoiled than genuinely frightening.

Source on TMDB