Woods, a ruthless professional killer, arrives at a palatial country home with orders to kill the occupants and retrieve a suitcase of stolen money. At the door, the hit man encounters not his intended victims, but only Anna, a young retarded woman. Posing as a police officer, Woods deceives her into letting him in. Once inside, he takes Anna hostage and terrorizes her into leading him through the house on a search for a suitcase of money he says was stolen by her sister, Beth. Following the discovery of a ransacked office, Woods begins to suspect that, although retarded, Anna is hiding the truth. In a strategy to divide and conquer, he taunts Anna that her sister plans to take the money and abandon her, and backs it up by showing her a half-packed suitcase and one airplane ticket in Beth's name. But Anna's loyalty does not waiver. Woods breaks into Beth's closet, where he makes a gruesome discovery. Enraged, he assaults Anna, manhandling her and throwing her to the floor. But despite...