Simon (Jason Bateman) and Robyn (Rebecca Hall) are a young married couple

whose life is going just as planned until a chance encounter with an acquaintance fromSimon’s high school sends their world into a harrowing tailspin. Simon doesn’t

recognize Gordo (Joel Edgerton) at first, but after a series of uninvited encounters andmysterious gifts prove troubling, a horrifying secret from the past is uncovered aftermore than 20 years. As Robyn learns the unsettling truth about what happened

between Simon and Gordo, she starts to question: how well do we really know the

people closest to us, and are past bygones ever really bygones?