Jason Bateman, Joel Edgerton, and Rebecca Hall star in a chilling psychological thriller that asks the question, "Can you really go through life having never wronged anyone?" Simon (Bateman) and Robyn (Hall) are a young married couple whose life is going as planned until a chance run-in with Simon's high school acquaintance sends their world into a tailspin. At first Simon doesn't recognize Gordo (Edgerton), but after a series of uninvited encounters and mysterious gifts prove troubling, a horrifying secret from the past is uncovered after more than 20 years. As Robyn learns the unsettling truth about what happened between Simon and Gordo, she starts to contemplate: how well do we really know those closest to us, and are bygones ever really bygones?