Simon and Robyn Callum (Jason Bateman and Rebecca Hall) are a married couple moving from Chicago to California while recovering from a recent miscarriage. They find a nice home near the place Simon used to live and decide to settle in.
While getting furniture for their house, a man (Joel Edgerton) approaches Simon and claims to know him from high school. Simon doesn't recognize him until the man says his name is Gordon Mosely, or Gordo. He politely welcomes the couple to the area and leaves.