Two ex-cons murder a family in a robbery attempt, before going on the run from the authorities. The police try to piece together the details of the murder in an attempt to track down the killers.
In the quiet family town of Suburbicon during the 1950s, the best and worst of humanity is hilariously reflected through the deeds of seemingly ordinary people. When a home invasion turns deadly, a picture-perfect family turns to blackmail, revenge and murder.
A psychotic man opens fire in a diner, murdering numerous people before killing himself. The survivors struggle in different ways following this horrendous event: a doctor doubts his own instincts and elects to use an experimental medical procedure on his wife, while a gambler believes he's on a lucky streak. A waitress begins engaging in promiscuous sex, and a young girl whose father is among the dead gains unexpected fame.
Once-incarcerated Marcus Cowans is trying to turn over a new leaf with the support of his loving family. Upon discovering that one of his brothers may have been involved in a horrific crime, Marcus grapples with the limits of brotherhood and loyalty. He and his family, increasingly weary of the justice system’s failings, end up in the crosshairs of a seasoned but jaded detective.
In the hope of a big score, two junkie couples team up to commit various drug robberies which go disastrously wrong, leading to dissent, violence, and murder.