chunk: After a nightmare at the lake house, Martha attacks Ted in her confusion. This leads Lucy to confront Martha, making it clear she must leave and informing her that they will pay for her treatment. Martha coldly states that Lucy will be a "terrible mother."
  The next morning, Martha goes swimming in the lake and sees a man watching her from the opposite shore. Ted and Lucy then drive Martha to her treatment facility when the same man from the lake runs in front of Ted's car. He gets into a car parked on the side of the road and appears to follow them. Martha nervously looks back as they drive on, but doesn't say anything.